April's answer to Nithiyanandam Geetha's Primary 5 Maths question.
how to calculate 15:12
You need to make B the lowest common multiple so that both A and C can be put together in the same ratio (ie. A: B : C).
In this case, it would be 12. Therefore, to get 12, you multiply by 3 for both , and that's how you get it.
In this case, it would be 12. Therefore, to get 12, you multiply by 3 for both , and that's how you get it.
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