Question

What no. Should be added to minus 7 by 8 to get 4 by 9

Answer 1

let the number be x

such that;

-7/8 + x = 4/9

x = 4/9 + 7/8

x = (32+63)/72

x= 95/72

hence 95/72 should be added.

verification ;

-7/8 + 95/72

= 32/72

= 4/9

Answer 2

Concept-

Make the equation according to the question and find the value of x .

Given-

The equation is formed as  -7/8 + x = 4/9

Find-

Find the value of x.

Solution-

First, we can infer the following equation from the question:

Let the required number to be added be x.

The equation according to the question will be-

⇒ -7/8 + x = 4/9

⇒ x = 4/9 - ( -7/8 )

⇒ 4/9 + 7/8    [ Since, -(-7/8) = 7/8 ]

⇒ ( 32 + 63 ) / 72

⇒ 95 / 72

Therefore, 95 / 72 should be added to -7/8 to get 4/9.

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