Question

The product of two rational number is (-14 /27) if one of them is 7/9 find the other

Answer 1

Answer:

Let the other number be x.

7/9×x=-14/27

x=-14/27×9/7

x=-2/3

The other number is-2/3.

Answer 2

Answer:

The second number is $\frac{-2}{3}$

Step-by-step explanation:

Given,

The product of two rational numbers = $\frac{-14}{27}$

One rational number = $\frac{7}{9}$

To find,

The second number

Solution:

Let the second number be 'x'

The product of 'x' and  $\frac{7}{9}$ = $\frac{7}{9}$ x

Since the product of two rational numbers is  $\frac{-14}{27}$, we have

$\frac{7}{9}$x  = $\frac{-14}{27}$

Cross multiplying we get,

7×27×x = -14×9

x = $\frac{-14X9}{27X7}$

= $\frac{-2}{3}$

x = $\frac{-2}{3}$

∴ The second number is $\frac{-2}{3}$

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