Question

by what numbers should we multiply -15/20 so that the product may be -5/7?​

Answer 1

Answer:

20/21

Step-by-step explanation:

Let reqd. number be x.

-15/20= -3/4

According to question,

(-3/4)x= -5/7

=> x = (-5/7)*(-3/4)

=> x = 20/21

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