Question

Francine use her computer for 2 1/8 hours Tuesday evening and for 2 1/4 hours on Wednesday evening. Which is the best estimate of time Francine use her computer on Tuesday and Wednesday evening?

A. About 1 / 4 Hour
B. About 3 hours
C. About 4 hours
D. About five hours

Answer 1

C. About 4 hours. When you add the numbers together, you get

2 1/8 + 2 1/4 = 35/8 = 4 3/8 = 4.375

Since the answer is not greater than 4.5, you round down to 4. If the answer was greater than 4.5, you would have rounded up to 5.