What is equivalent to 4/3 that is not an improper fraction

1 1/3

Step-by-step explanation:

Something that is not a inproper fraction is a proper fraction which is:

The numerator is less than the denominator

Examples: 1/3, 3/4, 2/7.

Or a mixed fraction which is:

A whole number and proper fraction together

Examples: 1 1/3, 2 1/4, 16 2/5