Question

What fraction of an $hour$ is $20minutes$?

Answer 1

We know that, $1hour=60minutes$

$\Rightarrow$ $60minutes=1hour$

$\Rightarrow$ $1minute=\frac{1}{60}hour$ ( dividing both the sides by $60$ )

$\Rightarrow$ $20minutes=\frac{20}{60}hour$ ( multiplying both the sides by $20$ )

$\Rightarrow$ $20minutes=(\frac{20÷20}{60÷20})hour$ ( dividing the numerator and denominator of the right-hand side by $20$ to simplify the fraction)

$\Rightarrow$ $20minutes=\frac{1}{3}hour$

Hence, $20minutes$ is $\frac{1}{3}$ of an $hour$.