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Leticia simplified an expression. Her work is shown below.

4.5 divided by one-fourth + 2 and one-half minus 0.75 times 8
Step 1 18 + 2 and one-half minus 0.75 times 8
Step 2 18 + 1.75 times 8
Step 3 18 + 14
Step 4 32

Where did Leticia make her first mistake?
step 1
step 2
step 3
step 4

Respuesta :

Leticia made a mistake in her step 2. She did subtraction before multiplication.

How to simplify an expression?

The expression can be simplified as follows;

4.5 ÷ 0.25 + 2.5 - 0.75 × 8

Hence, using Pemdas rule,

4.5 ÷ 0.25 + 2.5 - 0.75 × 8

18 + 2.5 - 0.75 × 8

18 + 2.5 - 6 = 14.5

Therefore, she made mistake in her step 2 because she was suppose to solve the multiplication before subtraction.

learn more on expression here: https://brainly.com/question/13545210

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