Question

Henry has 9/10
kilogram of potting soil. He uses 1/5
of the potting soil to plant some roses.

How much potting soil does Henry use?

Answer 1

To find out how much potting soil Henry uses, we need to calculate \( \frac{1}{5} \) of \( \frac{9}{10} \) kilogram.

We can do this by multiplying the two fractions:

\[
\frac{1}{5} \times \frac{9}{10} = \frac{1 \times 9}{5 \times 10} = \frac{9}{50}
\]

So, Henry uses \( \frac{9}{50} \) kilogram of potting soil to plant the roses.