What is the multiplicative inverse of 1 2/3

To find the multiplicative inverse of a fraction, we simply flip the fraction upside down.

The fraction 1 2/3 can be written as a mixed number or an improper fraction. Let's convert it to an improper fraction:

1 2/3 = (1 * 3 + 2)/3 = 5/3

The reciprocal or multiplicative inverse of 5/3 is therefore 3/5.