Question

The product of two rational numbers is 5/8. If one of them is -7/20, find the

other.

​

Answer 1

Answer:

Given that product the of a rational number with

3

−4

is

16

−9

Let the rational number be y

∴y×

3

−4

=

16

−9

By cross multiplication,

y=

4×16

9×3

=

64

27

Answer 2

Answer:

-25/14

Step-by-step explanation:

given, (-7/20)(x) = 5/8

=> x = -  (5/8) * (20/7)

=> x = -  (5/2) * (5/7)

=> x = - (5*5)/(2*7)

=> x = -25/14