Question

Is 0.3 the multiplicative inverse of 3 1/2 why or why not

Answer 1

bonjour dear!

3 1/2 = 7/2

0.3 = 3/10

a * 1/a =1

then 1/a is multiplicative inverse of a

3/12*0.3 = 7/2 * 3/10= 21/20

hence, 0.3 is not the multiplicative inverse of 3 1/2

Answer 2

no it is not because when you will change the decimal to fraction it will not come as the multiplicative inverse of 31/2