Question

the product of two numbers is 56/81. if one of them is -8/27.find the other​

Answer 1

according to the question above is

-7/9xx=56/81

=>x=56/81×-9/7

=>x=-8/9

hope it helped u

have a great day ahead

Answer 2

Answer :-

• The other rational number is -21/9.

To find :-

• The other rational number.

Step-by-step explanation :-

One of the rational numbers is -8/21.

• Let the other rational number be "x".

It is given that :-

• The product of these two numbers, that is, the product of -8/27 is 56/81.

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Therefore :-

$\sf \longmapsto \dfrac{-8}{\:27} \times x = \dfrac{56}{81}$

$\sf \longmapsto x = \dfrac{56}{81} \div \dfrac{-8}{\:27}$

$\sf \longmapsto x = \dfrac{56}{81} \times \dfrac{\:\:\:27}{-8}$

$\sf \longmapsto x = \dfrac{\not\!\!56}{\not\!\!81} \times \dfrac{\:\:\:\not\!\!27}{\not\!\!\!\!\!-8}$

$\sf \longmapsto x = \dfrac{7}{9} \times \dfrac{\:\:\:3}{-1}$

$\sf \longmapsto x = \dfrac{\:\:\:\:21}{-9}$

$\sf \longmapsto x = \dfrac{-21}{\:\:\:9}$

• Hence, the other number is -21/9.

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Know more :-

What is a rational number?

• A number that can be expressed in the form of p/q, where p, q are integers and q ≠ 0, is called a rational number.