Question

What fraction of a minute are 25 seconds? Write simplest form of the fraction obtained.

Answer 1

One minute has a total of 60 seconds.

Hence the fraction which represents 25 seconds of a minute
$=\frac{25}{60}$.
To write the simplest form, we need to get the HCF of 25 and 60.
Both are commonly divisible by only 5 and this is the HCF.
$\frac{25}{60}\Rightarrow \frac{25÷5}{60÷5}=\frac{5}{12}$.
Therefore, $\frac{5}{12}$ is the simplest form of the fraction.