Maths - Addition with Different Denominators - Key Stage 3
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thanks alot i have my final key stage 3 exam coming up this helps
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this is th longest method av evr seen...wow, the method i use is waaaaayyyyy easier.
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i still i dont no how 2 do them
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thanx man
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I was wonder if conquermaths cover all the syallbus of Gcse AQA maths? plz reply i hav aqagcse maths exams in 2months
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THANKS!
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can we like times the denominators ..like..4x5 = 20 ??
i think we can..thats how i do it..i hope that works for these kind of differnt sums
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No, we can't just times the denominators without doing the same with the numerator too. If you imagine a half plus a quarter:
1/2 + 1/4
Now if we times the denominators, 2x4 we'd get an answer of 1/8 and since we're adding a quarter to a half, that answer is too small.
If you imagine that one half is the same as two quarters, we can write the expression like this:
2/4 + 1/4 and if we add that together, we get 3/4.
I hope that helps to explain!
conquermaths 3 years ago