Question

A builder wants to nail a 2 1/4 foot extension to a board that is 7 9/12 feet long. How long will the board be after her work? Express your answer in lowest terms.
A reasonable estimate for this problem is approximately
( A. 6 B. 9 C. 10 ) feet.

A common denominator to use is ( A. 12 B. 16 C. 16) .

The board will be
A. 5 2/3 B. 6 C. 9 5/8 D. 10 feet long.

Answer 1

Answer:

1. C
2. A
3. D

Step-by-step explanation:

2 1/4 = 2

7 9/12 = 8

2 + 8 = 10

2 1/4 = 9/4 = 27/12

7 9/12 = 93/12

27/12 + 93/12

120/12

10

Best of Luck!