Question

What fraction of an hour is 40 minutes?

Answer 1

We know,

$1$ hour = $60$ minutes

$40$ minutes of an hour can be expressed as $\frac{40}{60}$

This fraction can be reduced further simplified

$\Rightarrow\frac{(40 ÷ 20)}{ (60 ÷ 20) }= \frac23$

and the simplified form gives us $\frac{2}3$

Therefore, $40$ minutes is $\frac23^{rd}$ of an hour.