Calculate 20% of 45

Step by step

The question

Question: work out 20% of 45.

1 Percent

Percent means out of 100.

So 20% is 20/100.

Both 20 and 100 can be divided by 20.

That makes it simpler.

So it is 1/5.

2 Times and divide

"Of" means times.

Before we multiply, we make the numbers smaller.

45 on top and 5 at the bottom both divide by 5.

A top and a bottom divided by the same number: the answer stays the same.

So we multiply smaller numbers.

1 times 9 is 9.

So the answer is 9.

Let's look back.

First: percent.

Last: times and divide.