Question

what number should be subtracted from the product of 2/7and3/8 to get -3/7 ?

Answer 1

Product of 2/7and 3/8 is

2/7 x 3/8=3/28

Let he number to be subtracted be x

Therfore

3/28-x=-3/7

x=-3/7-3/28

=-12-3/28

=-15/28

Therefore -15/28 must be subtracted.

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