Question

A carpenter cuts a board 3 3/8 A carpenter cuts a board 6 1/2 feet long.How long is the remaining piece of board? (Simplify your answer and write it as a mixed number.)

Answer 1

Subtract 3 3/4 from 10 1/2. Note that the LCD is 4, so 10 1/2 = 10 2/4.

What is 10 2/4

- 3 3/4

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?

Since 2/4 is smaller than 3/4, you must borrow 1 from that 10.

Now your problem looks like 9 6/4

-3 3/4

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6 3/4 (answer)

The remnant of the board is 6 3/4 feet long.

Explanation: