Priya is baking. She uses 2/3 cup of flour for cookies and 3/4 cup of flour for a cake. She started with 2 cups of flour. How much flour is left after baking both?
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Worked Solution
Step 1: Find the total flour used.
2/3 + 3/4 — find the LCD of 3 and 4, which is 12.
2/3 = 8/12 and 3/4 = 9/12
8/12 + 9/12 = 17/12 = 1 5/12 cups
Step 2: Subtract from the 2 cups Priya started with.
2 − 17/12 = 24/12 − 17/12 = 7/12
Priya has 7/12 cup of flour left.
Correct answer: 7/12
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