Question

What is 7.4 as a fraction in simplest form

Answer 1

7.4 = 7 4/10 = 74/10 = 37/5 <- this is the answer

Answer 2

Or you can use the mixed number version: 7 4/10
Then divide 4 and 10 by 2.
The simplest form for that is 7 2/5

Use whatever you want. His answer is also correct.