0.1 as a fraction
0.1 is 1 tenth, so write it as 1/10.
The answer
0.1 = 1/10
How to write 0.1 as a fraction
Put the digits in a place value chart. The place of the last digit tells you the bottom of the fraction.
| Ones | Tenths |
|---|---|
| 0 | 1 |
The last digit is in the tenths column, so 0.1 is 1 tenth: 1/10.
1 and 10 share no factor except 1, so 1/10 is already in its simplest form.
As a percentage, 0.1 = 10%: multiply by 100, which moves each digit two places to the left.
To check, divide back: see 1/10 as a decimal and 1/10 as a percentage.
See 1/10
Shade 1/10 on a fraction wall
This wall shows selected denominators: halves, thirds, quarters, fifths, sixths, eighths and tenths. Other fractions on this site may not have a row here. The wall opens with 1/10 shaded in the tenths row. Look straight down: no other row ends in exactly the same place, so no other fraction on this wall equals 1/10. Tap other pieces to try more fractions.
A fraction wall from halves to tenths, opening on 1/10.
More decimals as fractions
Questions parents ask
What is 0.1 as a fraction in its simplest form?
0.1 = 1/10. 1 and 10 share no factor except 1, so 1/10 is already in its simplest form.
How do you write 0.1 as a fraction?
The last digit of 0.1 is in the tenths column, so write the digits over 10: 1/10. Then simplify if you can.
What is 0.1 as a percentage?
0.1 = 10%. Multiply by 100: the digits move two places to the left.
Continue your maths practice
Explore the diagnostic for another way to practise.