Question

the product of two rational number is 18/35.if one of them is -2/5, find the other

Answer 1

HI MATE,

LET THE UNKNOWN NO. BE 'X'.

-2/5X=18/35
=>X=18/35×(-5/2)
=>X= -9/7

HENCE,THE UNKNOWN NO. IS -9/7.

HOPE IT HELPS YOU!!!!

Answer 2

Given :

The product of two rational number is 18/35.

To find :

one of them is -2/5

Solution:

One of them = $\frac{-2}{5}$

Let the other fraction be x

Product of fractions = $x \times \frac{-2}{5}$

We are given that The product of two rational number is 18/35

So, $x \times \frac{-2}{5}=\frac{18}{35}\\x=\frac{18}{35} \times \frac{5}{-2}\\x=\frac{-9}{7}$

Hence The other fraction is -9/7