Write 4/5 as a decimal

Step by step

The question

Question: write 4/5 as a decimal.

1 Make the bottom 10, 100 or 1000

A decimal is tenths, hundredths, thousandths.

So we want a bottom of 10, 100 or 1000.

5 times 2 is 10.

We multiply the top and the bottom by 2.

2/2 is 1, so the value stays the same.

4 times 2 is 8.

So we get 8/10.

2 Write the decimal

10 has 1 zero.

So the decimal has 1 digit after the point.

8 tenths is 0.8.

3 Check

Let's check: the decimal times the bottom should give the top.

0.8 times 5.

Forget the points: 8 times 5 is 40.

The numbers have 1 digit after the point.

So the answer has 1 too: 4.0, which is 4.

We get 4, the top.

So the answer is right!

Let's look back.

First: make the bottom 10, 100 or 1000.

Then: write the decimal.

Last: check.