Question

The product of two rational numbers is -4/27,if one of the number be 7/9find the other??​

Answer 1

➤ Answer :-

${\tt \longrightarrow \dfrac{7}{9} \times \sf(x) \tt = \dfrac{( - 4)}{27}}$

To find the value of 'x' in the following question, we should divide the answer and the first value........

${\sf \longrightarrow (x) \tt = \dfrac{( - 4)}{27} \div \dfrac{7}{9}}$

To divide these both fractions, first we should take the reciprocal of the second value i.e, ${\tt\dfrac{7}{9}}$ and multiply both of them........

${\tt \longrightarrow \dfrac{( - 4)}{27} \times \dfrac{9}{7} = \dfrac{( - 4) \times 9}{27 \times 7}}$

${\tt \longrightarrow \dfrac{( - 36)}{189} = \boxed{ \tt\dfrac{( - 4)}{21}}}$

$\Huge\therefore$The answer is ${\tt\dfrac{(-4)}{21}}$.

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More to know...............

• While multiplying the fractions if the first value is not given, we should divide the answer and second value.
• While multiplying the fractions if the second value is not given, we should divide the answer and the first value.
• While dividing the fractions if the first value is not given, we should multiply the answer and the second value.
• While dividing the fractions if the second value is not given, we should divide the first value and the answer.