Question

A student completes 2/5 of a science project in 3/4 hour. At this rate, what fraction of the project can the student complete per hour?

Answer 1

The fraction of the fence completed in one hour at a rate of  $\frac{2}{5}$ of the

fence in  $\frac{3}{4}$ hours is  $\frac{8}{15}$.

How can the fraction completed in one hour be found?

The fraction of the fence completed in $\mathbf{\frac{3}{4}}$ of an hour = $\frac{2}{5}$

Required:

The fraction of the fence the student completes per hour;

Solution;

The time $\mathbf{\frac{2}{5}}$ of the fence is completed =  $\frac{3}{4}$ of an hour

Therefore;

$The \ in \ \mathbf{\frac{\dfrac{3}{4} \ hour}{\dfrac{3}{4} \ hour}} = 1 \ hour \ the \ frraction \ completed = \dfrac{\dfrac{2}{5} }{\dfrac{3}{4} \ hour} = \dfrac{8}{15} \ per \ hour$

The fraction of the fence completed per hour = $\underline{\frac{8}{15}}$

Learn more about fractions here:

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