Converting Fractions into Decimals & Percents

[xokizza]

kayy so what if u cant use a calculator?? hello im going into nursing i cant use a calculator??????????????????

[crystalglamz2k11]

jheez man! If you're a maths teacher you should have a mathematics brain not a cheating calculator dead brain! Even my teacher at school never EVER uses calculator for something so simple like that gosh!

[mbrandl11]

@crystalglamz2k11

Just because I'm a math teacher, doesn't mean I'm a human calculator! :-) I'll keep that in mind for the future.

[ClanTprRS]

The s=>d button allows you to change a fraction to a decimal. With the 'shift' button on a fx-83GT PLUS calculator(scientific) you can get the '%' sign.

If you have a calculator, you divide 1/4. 1/4=0.25

To find 0.25 as a percentage, you multiply 0.25 by 100.

1/4 -> 0.25 -> 25%

[MalfoyIs0urKing]

Why do people keep complaining about the calculator bit? If you're converting fractions into decimals and percents, diving should be a breeze. I'm sooo glad my mom made me do my math without a calculator.

[d08gnasiriz]

This is good but I'm not allowed to use a calculator in a non calculator exam!!

[Ninonefon]

lol dude can't use long division shame on you son

[ClanTprRS]

@Ninonefon S=>D button on calculator allows to change Fraction to decimal. 1/4 = 1 divided by 4. 1 divided by 4 = 0.25 Decimal -> Percentage 0.25 x 100. You multiply by 100 becuase per cent = out of 100. 0.25 x 100 = 25. 25 + 75 = 100. Because 0.75 is 3/4, 0.25 is 1/4. As it goes in 25s. 25 = 1/4 50 = 2/4 (1/2) 75 = 3/4 100 = 4/4

[ucantpkme2]

This is the easiest video i have ever watched! I think your great at teaching.

[matotomonts1]

U explained it alot better than others.....thanks!

[moonflame77]

>_<

[marioandWEEGEE2]

this dosent help i need to show my work!!!!!!!!!!!

[mbrandl11]

@marioandWEEGEE2

You would just have to work out the division by hand rather than typing it into the calculator.

Search for "Long Division of Numbers" to find a number of videos to help you with that part.

Good luck! :-)

[marioandWEEGEE2]

@mbrandl11 quit copying and pasting will ya?

[mbrandl11]

@marioandWEEGEE2

I try my best not to reinvent the wheel to answer the same question. :-)

[firaas8]

u wont have a calculator in a test

[MrRyfoe]

Great! Now how do I do it without a cauculater?

[mbrandl11]

@MrRyfoe

You would just have to work out the division by hand rather than typing it into the calculator.

Search for "Long Division of Numbers" to find a number of videos to help you with that part.

Good luck! :-)

[MrRyfoe]

@mbrandl11 Thanks

[firaas8]

@MrRyfoe how do u do it without a calculator?

[ntnghia86]

how do u do it with paper n pencil????

[mbrandl11]

@ntnghia86

You would just have to work out the division by hand rather than typing it into the calculator.

Search for "Long Division of Numbers" to find a number of videos to help you with that part.

Good luck! :-)

[puzzlemaster3]

thanks.you helped allot.the only thing is that you should make a video were you dont use the caculator.:<)

[kellyy2jy2j11]

for years iive not understud fractions to % or decimals but uve helped a lot thx

[AzianVinie]

thank you mate ur a better maths teacher then mine

[mga361]

whats the process to work it out since we arent allowed to use calculators? my division is horribly rusty.

[mbrandl11]

@mga361

I'll add long division to my "to do" list of videos! :-)

[sdsocaligurl619]

Your video helped my 11 year old with his homework. It definitely refreshed my memory. Using the calculator is helpful. But they want him to show his work. Maybe this is something you add into this video- using/not using the calculator. Thanks so much. This was very educational. =)

[mbrandl11]

@sdsocaligurl619

Thanks for the suggestion. I'll keep that in mind as I create more videos! :-)

[meg140140]

Not very good help

[mbrandl11]

@meg140140

How could I make it better? I look forward to your suggestions! :-)

[arhamomar]

@mbrandl11 no,its perfect.i understood every thing and never even touched my txt book :)

thnx

[gaara19791979]

how do you do this one ? what is 66 and 2/3 % of 810 ?

[mbrandl11]

@gaara19791979

66 2/3% is the same as 0.6666666666... or the fraction 2/3.

"of" means multiplication, so we'll multiply.

(2/3)(810) = 1620/3 = 540

I hope that helps!

[gaara19791979]

@mbrandl11 yeah it does thanks

[MrBER2000]

every time i divide it it goes on for ever and ever

[mbrandl11]

@MrBER2000

When you have repeating decimals you can put a bar over the repeating digit(s) to show that they go on forever. Otherwise, you may be asked to round to a certain decimal place.

[EpicXI]

@mbrandl11

awesome vid. do fractions have to be converted to decimals before they can be expressed as percentages?

[mbrandl11]

@EpicXI

That's probably the easiest way to convert them into percents.

Another way would be to convert the fraction so that the denominator is 100, since percent means "per 100", whatever the top number is would be your percentage. That's easy if you're converting something like 3/25, but not so much if you're converting something like 2/7.

I hope that helps! :-)

[extervationalist]

How do you convert stuf like 4 & 3/8

(3/8 is the fraction and 4 is the whole number)

[mbrandl11]

@extervationalist

We know the whole number is 4 so it will be 4.something.

Then we can convert the 3/8 by dividing three by eight to get 0.375.

Combine the two to get 4.375.

I hope that helps! :-)

[dalejrfan800]

@mbrandl11 If that was converted to a percentage it would be 437.5%?

[mbrandl11]

@dalejrfan800

You got it! Exactly!

To convert from decimal number into a percentage, we move the decimal point two places to the right.

[dalejrfan800]

@mbrandl11 Awesome, I love your enthusiasm.

[extervationalist]

This guy is my savior. He saved my butt in 6th Grade!

[miggywiggy100]

how do you do 0.5 \;

[mbrandl11]

@miggywiggy100

To convert 0.5 into a decimal, remember, if we can read it correctly we can write it as a fraction. It would be read as five tenths. That sounds like a fraction to me! 5/10

Finally, simplify by dividing by 5 on the top and bottom to get 1/2.

To write it as a percent we simply move the decimal point two places to the right to get 50%.

I hope that helps! :-)

[419HYBRID]

thank you i have been looking for a video like this for ever thank you

[bapblessed]

Thanks so much! My mathbook has easy one (such as 8/25) as examples. However, the questions are something like 7/30. Now I get it thanks to you!

[JOECAROLNICKAILEEN]

o.o

[fawful2]

OMFG im almost done with 5th grade and i dont know this stuff how am i gonna survive in middlesschool :(

[mbrandl11]

@fawful2

Just keep working at it! Clearly it's important to you since you are seeking out videos online. I know you can do it! :-)

[fawful2]

@mbrandl11 ok i will keep trying :)

[DAVE000G]

@fawful2 It's ok! I'm 34 yrs old trying to pass my ged math and i don't get it at all!

You will survive!!!!!!!!!!

[fawful2]

@DAVE000G cool i will try harder! :)

[rbroatea]

@fawful2 im jr high 7

[fawful2]

@rbroatea o cool i started junior high 6 like 2 couple weeks ago

[rmm19741]

Hey, Thanks!

[michaelx12x]

wats 9 dived by 7

[mbrandl11]

Use the calculator on your computer or do a Google search for "online calculator" and you'll find many to choose from.

Good luck!

[Smidgeytreez]

fantastic thank you so much.

[GreekFreak1eleven]

this is great! Thx so much!

[Ditypo]

pretty cool

[Bowlrdude6]

omg his voice sounds so funnt at 0:19 to 0:22 if you listen to it a couple times lmao

[cherrybomb305]

u teach it a billion times easier than my teacher :D thnk uu

5 *

[Bowlrdude6]

@cherrybomb305 agreed man thanks for posting this video mbrandl11

[meezgirlmovies123]

thank uuuuuuuuuuuuu

[anc0598]

thank god u made this vid. im failing math and i have a quiz 2moro. watching this video makes me feel stuupid to know that i didnt know this lol 5 stars

[Thien47]

this is a good example for school, yesteday we watched this video for maths, keep those videos coming!:)D

[StephenTearle]

All well and good, but what if you don't have a calculator, which in test they don't allow, and i have no idea how to workout 3/40

[mbrandl11]

If you don't have a calculator, you would just work out 3 divided by 40 in good ol' long division style.

[StephenTearle]

Actually teacher taugh me a better way

3/4 devide 100 by 4 25 , then times 25 by three 75 so 75/100 =75% devide that by 100 to convert it into decimal 0.75

[mbrandl11]

Absolutely! That works well if you can multiply by something to make the bottom number into 100.

[StephenTearle]

Cyou please short alternitave ways of doing these problems, would be a big help :) Thanks you.

[FunkiiX]

lol yeah thats what i had to do ..... grr lol

[FunkiiX]

But...

what if you are meanta be doing hwk and u dont understand it and u cant use a calcualtor :(

[mbrandl11]

Then you'll have to do the division the old fashioned way...by hand. ;-) Just remember that the top number goes inside the box and the bottom number goes outside.

[StephenTearle]

Doing a maths course the tutor was ncie enough ti show me this:

Actually teacher taugh me a better way

3/4 devide 100 by 4 25 , then times 25 by 3 which is 75 so 75/100 =75% devide that by 100 to convert it into decimal 0.75

[seantking]

dude thx alot eogs are coming up and this is going to show up alout on the test thx

[KES59222]

Well done! This really helped :) THANKS!

[onynsito]

thank you soooo much. You explained it better than my teacher.Wow!!!!!!!!that really helped me alot.

[Hawktail496]

Thanx man, that really helps, now i can finish my homework!

[jonasbrothersrock92]

that helped a lot with my homework! thanks so much! you're a great explainer!

[wanda190]

wow you did a great job explaining thank you so much!!=)

[bsaintjohn]

thanks a lot!!!:)

[JbOxRh]

Very well explained

[fuzzynaruto]

Yay this helps! :) :D  :)