Question

Your school has recently built a new computer room and installed five new machines.Write

a factual description of it for your school magazine, in about 100-120 words.​

Answer 1

Answer:

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