Fractions & Proportions : How to Cross Multiply Proportions

Cross multiplying proportions is a straightforward process that is the same as cross multiplying fractions. Cross multiply by multiplying a numerator by the other side's denominator with help from a math teacher in this free video on proportions in math.

Expert: Jimmy Chang
Bio: Jimmy Chang has been a math teacher at St. Pete College for nearly a decade. He has a master's degree in math, and his specialties include calculus, algebra, liberal arts, math and trigonometry.
Filmmaker: Christopher Rokosz

Category:

Howto & Style

Tags:

• math
• mathematics
• math tips
• math lessons
• equations
• math fractions
• fractions
• math skills
• proportions
• fraction problems

[baseballin4eva]

i only clicked on this because he's asian, so I assumed he was smart

[batangkalye15]

OMG! He is asian. hahaha..

[epicfailcookie4]

thank you jimmy ur a BIG help my teacher went over this in a munite and i didnt undwrstand it -__- but thanks it realy helped

[Airsoftfan1782]

THANK YOU so much! i was doinga project based on this and i didnt understand it ! thank u!

[Awesomenessboy123344]

Im 10 and i understand this lol

[caitlinmullarkey1]

That helped thanks so much:)

[Keeeelccc]

that helped thanks :)

[thesnooch]

@baseballin4eva me too



[Shaydog26]

you guys are racists stop this is public

[Tkman84cp]

wow always thought it was much harder, i missed school today and thought id be lost in what we in math ( which is this ) now it makes sense!

[1999ShadowX]

@batangkalye15 So then why is it so funny? and how the hell was I suppose to know?

[batangkalye15]

@1999ShadowX haha! why u mad bro?! chill. I'm asian too. LOL!