9/10 as a decimal
9/10 is already over 10, so you can write it straight down as a decimal: 0.9.
The answer
9/10 = 0.9
How to turn 9/10 into a decimal
The quick way is to make an equivalent fraction with a bottom of 10, because tenths can be written straight down as a decimal. 9/10 already has that bottom.
9 tenths is written 0.9: the last digit goes in the tenths column.
You can also divide the top by the bottom. Short division gives the same answer:
- 10 does not go into 9, so write 0 and a decimal point, then carry the 9 over as 90 tenths.
- 10 goes into 90 9 times exactly. Write 9.
- The remainder is 0, so the division stops: 9 ÷ 10 = 0.9.
9/10 as a fraction, decimal and percentage
| Fraction | Decimal | Percentage |
|---|---|---|
| 9/10 | 0.9 | 90% |
Multiply the top and bottom by the same number and the fraction keeps its value: 9/10, 18/20, 27/30, 36/40 and 45/50 are all equal.
All the tenths
Shade 9/10 on a fraction wall
The wall opens with 9/10 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 9/10. Tap other pieces to try more fractions.
A fraction wall from halves to tenths, opening on 9/10.
Keep going
Questions parents ask
What is 9/10 as a decimal?
9/10 = 0.9.
Is 9/10 a recurring decimal?
No. 9/10 is already over 10, so the decimal stops at 0.9.
Is 9/10 more or less than a half?
9/10 is more than a half: 0.9 is more than 0.5. Half of 10 is 5, and 9 is more than 5.
What is 9/10 as a percentage?
9/10 = 90%.
Which fractions are the same as 9/10?
18/20, 27/30, 36/40, 45/50 and every other fraction you make by multiplying the top and bottom of 9/10 by the same number. They all equal 0.9.
Fractions, decimals and percentages run all through 11+ maths
Converting between them turns up in 11+ questions on percentages, ratio, money and data. The free diagnostic checks maths, English and both kinds of reasoning, and shows what to practise next. No card is required.