Question

A student solved this problem and said the answer is 1 1/12 hours. Wendy practiced piano for 3/4 hour and practiced her flute for 1/3 hour. What was the total length of time that Wendy practiced her instruments? Is the student's answer reasonable? A. Yes, the answer is reasonable. B. No, the answer is not reasonable. It should be about 1/2 hour. C. No, the answer is not reasonable. It should be about 2 hours. D. No, the answer is not reasonable. It should be about 3 hours.

Answer 1

The answer is A because 3/4+1/3 =9/12+4/12=13/12=1 1/12 so it is A