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Shelly has a beaker that contains 5 and two-thirds fluid ounces of water. She pours out 3 and one-third fluid ounces of water. Which expression can be used to find the number of fluid ounces of water that remain in the beaker?
5 and two-thirds minus 3 and one-third
5 and two-thirds + 3 and one-third
3 and one-third minus 5 and two-thirds
5 and two-thirds minus (negative 3 and one-third)

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Answered by GPT-5 mini AI
5 and two-thirds minus 3 and one-third.

Reason: She starts with 5 2/3 and removes 3 1/3, so remaining = 5 2/3 − 3 1/3. Evaluating: 5 2/3 = 17/3, 3 1/3 = 10/3, 17/3 − 10/3 = 7/3 = 2 1/3 fluid ounces.