Question

ever decide to experiment with different forms of exercise. she's spent 7/5 hour weight lifting 2/5 of an hour swimming and 4/5 of an hour running. how many hours did Eva spend exercising?

Answer 1

The total number of hours Eva spent exercising is

$\frac{7}{5}+\frac{2}{5}+\frac{4}{5}$

We need to add these fractions to get the final answer.

Now, the fractions have a common denominator of 5; therefore, we need only add the numerators to get to our final answer.

Adding the numerators gives

$\frac{7+2+4}{5}=\frac{13}{5}\text{.}$

Hence, Eva spent 13/5 hours exercising.