Question

Find the multiplicative inverse of each of the following

a. 6/7
b. 4 1/5

Answer 1

a) the inverse is 7/6

b) the inverse is 5/21

Explanation:

a) the inverse is 7/6

flip the fraction

6/7 * 7/6 = 1

b) the inverse is 5/21

4 1/5 as an improper fraction is (5*4+1)/5 = 21/5

flip the fraction

5/21 * 21/5 = 1