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Write 12.5% as a fraction

Step by step, with the reason for every step · Percents, decimals and fractions · Foundations

Step by step

The question

Question: write 12.5% as a fraction.

12.5%

1 Write it over 100

Percent means out of 100.

So 12.5% is 12.5/100.

= 12.5100

A fraction is written with whole numbers.

So we multiply the top and the bottom by 10.

= 12.5 × 10100 × 10

12.5 times 10 is 125.

100 times 10 is 1000.

= 1251000

2 Simplify

125 and 1000 can both be divided by 125.

That makes it simpler.

= 125 ÷ 1251000 ÷ 125

So 12.5% is 1/8.

= 18

Can we make it simpler?

No number goes into both 1 and 8, except 1.

So it stays like this.

simplest ✓

3 Check

Let's check: make the bottom 100 again.

8 times 125 is 1000.

1 times 125 is 125.

Divide the top and the bottom by 10: 12.5/100.

12.5 out of 100 is 12.5%.

So the answer is right!

Check: 18 = 1 × 1258 × 125 = 1251000 = 12.5100 = 12.5%

Let's look back.

First: write it over 100.

Then: simplify.

Last: check.

Answer
simplest ✓

Your turn

Try this one yourself, then check:

Write 37.5%
Show the answer
38

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