Verified answer

Answer:

Step-by-step explanation:

4/4 = 9/4 - 5/4

      = 1

9/4 and 5/4 are similar fractions so you just need to subtract the numerator and copy the denominator to get the difference of the problem.

Since 4/4 has an identical or the same numerator and denominator, we can just convert it to 1.

Hope this helps