Write 9/10 as a percent

Step by step

The question

Question: write 9/10 as a percent.

1 Make the bottom 100

Percent means out of 100.

So we want a bottom of 100.

10 times 10 is 100.

We multiply the top and the bottom by 10.

10/10 is 1, so the value stays the same.

9 times 10 is 90.

So we get 90/100.

Careful!

As a decimal, 9/10 is 0.9.

But 0.9% means 0.9 out of 100: far too small.

2 Write the percent

90 out of 100 is 90%.

3 Check

Let's check: go back.

90% is 90/100.

Divide the top and the bottom by 10.

We get 9/10.

So the answer is right!

Let's look back.

First: make the bottom 100.

Then: write the percent.

Last: check.