Jackie made an error when trying to determine the value of the expression.
Here are the steps she used. Describe the error that Jackie made.
2/3 (3/5 - 3/4) + 1/2 ➗ 1/4
Step 1: 2/3 (- 3/20) + 1/2 ➗ 1/4
Step 2: - 1/10 + 1/2 ➗ 1/4
Step 3: - 1/10 + 1/8
Step 4: 1/40
Jackie added 1/2 and 1/4 to get 1/8 but in order of operation you have to multiply and divide first . So she should have divided 1/2 by 1/4 and then added that with -1/10 .