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Question:

The high-school track measures one quarter of a mile around. How many laps would you have to run in order to run three and a half miles?

A
14

Explaination

Divide the total number of laps by the length of one lap. 3^{1}/_{2} ÷ ^{1}/_{4}. First, convert the mixed number to a fraction, then divide by ^{1}/_{4}. ^{7}/_{2} ÷ ^{1}/_{4} = ^{28}/_{2}, which can be reduced to 14.