Question

Why we multiply denominator with other denominator?

Answer 1

Hey here is your answer
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Q. Why we multiply denominator with other denominator?
:: Theŕe are mainly two cases :

Case 1 :
When we add or subtract two fractional number then for further process denominator must be same if they do not same in magnitude then the addition and subtraction b/w both the fraction will happen for that we find the LCM of dinominators it may sometime the product of the dinominator.

Case 2:
When we multiply two fractions then the dinominator also get multiplied..
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@ajaman..

Hope it helps you...