Question

if the product of two rational number is 25/42 and one of them is -2 6/7 find the other

Answer 1

let other rational no be X. then
$x \times - 26 \div 7 = 25 \div 42$
then
$x = 25 \div 42 \times 7 \div - 26$
$x = 25 \times 1 \div - 26 \times 6$
$x = - 25 \div 156$
so X = -25/156

hope it will help u

Answer 2

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Here is your answer.
Product of two Numbers are 25/42

One Number is -2 6/7
= -20/7
Let the other Number is x

ATQ

$x \times ( - \frac{20}{7} ) = \frac{25}{42} \\ x = - \frac{25 \times 7}{42 \times 20} \\ x = - \frac{5}{24}$
Therefore the other Number is
$= - \frac{5}{24}$

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