Question

The multiplicative inverse of 1/16 ÷ 1/81 +-1/8​

Answer 1

Given :  1/16 ÷ 1/81   +    -1/8

To find :  multiplicative inverse

Solution:

a multiplicative inverse  is basically a reciprocal

Multiplicative inverse of number  is the number which if multiplied by original number result in 1

1/16 ÷ 1/81   +    -1/8

1/16 ÷ 1/81   = 81/16

 +    -1/8  = - 1/8

81/16  - 1/8

= 81/16  - 2/16

= (81 - 2)/16

= 79/16

Multiplicative inverse = 16/79

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or

Given :-

To find :-

The multiplicative inverse of the given expression above.

Solution :-

We know that, a multiplicative-inverse(or a reciprocal) of a number gives a product of 1 when it is multiplied with the number.

(Number × Reciprocal of the number = 1)

Thanks

Answer 2

a multiplicative inverse is basically a reciprocal

Multiplicative inverse of number is the number which if multiplied by original number result in 1

$\huge \star \green{ANSWER}$

1/16 ÷ 1/81 + -1/8

1/16 ÷ 1/81 = 81/16

+ - 1/8 = - 1/8

81/16 - 1/8

= 81/16 - 2/16

= (81 - 2)/16

= 79/16

Multiplicative inverse = 16/79