Question

Mario tried to solve an equation step by step.

4/3=q+1/3
4/3-1/3=q+1/3-1/3 (step 1)
2/3 =q (Step 2)
Find Mario's mistake.
A) Step 1
B) Step 2
C) Mario did not make a mistake

Answer 1

Mario's mistake is in Step 1.

Step-by-step explanation:

Mario's mistake is in Step 1. When subtracting fractions, the denominators must be the same. In Step 1, Mario subtracted 1/3 from 4/3, but he did not make the denominators the same. The correct step should be 4/3 - 1/3 = (4 - 1)/3 = 3/3 = 1. Therefore, the mistake is in Step 1.