The Boardman family walked two over five of a mile in two over seven of an hour. What is their unit rate in miles per hour? two-sevenths over two-fifths equals one and two-fifths miles per hour two-sevenths over two-fifths equals five over seven mile per hour two-fifths over two-sevenths equals one and two-fifths miles per hour two-fifths over two-sevenths equals five over seven mile per hour

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[tex]\frac{\frac{2}{5} \ mi}{\frac{2}{7} \ h}=\frac{2}{5} \times \frac{7}{2} \ \frac{mi}{h}=\frac{7}{5} \ \frac{mi}{h}=1 \frac{2}{5} \ \frac{mi}{h}[/tex]

Their unit rate was 1 2/5 miles per hour.
The correct answer is: "two-fifths over two-sevenths equals one and two-fifths miles per hour".

Answer:

Their unit rate was 1 2/5 miles per hour.