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John cut a 4 ft. long piece of lumber into shorter pieces to repair his deck. He cut three pieces each 3/4 ft. long, and two pieces each 1/2 ft. long. How much wood did he have left?

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The amount of wood left is about 3/4 feet long

Sum of fractions

Fractions are ratios of two integers. Given the following parameters

Total length of lumber = 4ft

If he cut three pieces each 3/4 ft. long, and two pieces each 1/2 ft, then the total pieces that he cut will be:

Total pieces that was cut = 3(3/4) + 2(1/2)

Total pieces that was cut =9/4 + 1

Total pieces that was cut = 9+4/4

Total pieces that was cut = 13/4

Determine the amount left

Amount left = 4 - 13/4

Amount left = 3/4 feet

Hence the amount of wood left is about 3/4 feet long

Learn more fractions here; https://brainly.com/question/78672

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