Name the multiplicative inverse of 9

1/9 is your answer answer because 9=9/1 so if you just flip it it's 1/9

The multiplicative inverse would be the fraction 1/9 which is 1 over 9.

In short, we think of 9 as 9/1 and then take the reciprocal

Multiplying 9 and 1/9 leads to 1

9 * (1/9) = (9/1) * (1/9) = (9*1) / (1*9) = 9/9 = 1