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5/16 as a decimal

Divide 5 by 16, or make the bottom 10,000: 5/16 = 3,125/10,000 = 0.3125.

The answer

5/16 = 0.3125

To 2 decimal places: 0.31

How to turn 5/16 into a decimal

The quick way is to make an equivalent fraction with a bottom of 10,000, because ten-thousandths can be written straight down as a decimal.

  1. 16 × 625 = 10,000.
  2. Do the same to the top: 5 × 625 = 3,125.
  3. So 5/16 = 3,125/10,000, which is 3,125 ten-thousandths.

3,125 ten-thousandths is written 0.3125: the last digit goes in the ten-thousandths column.

You can also divide the top by the bottom. Short division gives the same answer:

  1. 16 does not go into 5, so write 0 and a decimal point, then carry the 5 over as 50 tenths.
  2. 16 goes into 50 3 times, remainder 2. Write 3, and carry the 2 to make 20.
  3. 16 goes into 20 once, remainder 4. Write 1, and carry the 4 to make 40.
  4. 16 goes into 40 2 times, remainder 8. Write 2, and carry the 8 to make 80.
  5. 16 goes into 80 5 times exactly. Write 5.
  6. The remainder is 0, so the division stops: 5 ÷ 16 = 0.3125.

To round to 2 decimal places, look at the third digit after the point. It is 2, which is less than 5, so round down: 0.3125 is 0.31 to 2 decimal places.

5/16 as a fraction, decimal and percentage

FractionDecimalPercentage
5/160.312531.25%

Multiply the top and bottom by the same number and the fraction keeps its value: 5/16, 10/32, 15/48, 20/64 and 25/80 are all equal.

The bar is cut into 16 equal parts and 5 are shaded.

All the sixteenths

Every sixteenth is 625 ten-thousandths: 5/16 is 5 × 625 = 3,125 ten-thousandths, which is 0.3125. A sixteenth is half of an eighth: half of 0.125 is 0.0625.

5/16 sits between 1/4 (0.25) and 1/3 (0.333...). It is closer to 1/3.

FractionDecimal
1/160.0625
3/160.1875
5/160.3125
7/160.4375
9/160.5625
11/160.6875
13/160.8125
15/160.9375

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Questions parents ask

What is 5/16 as a decimal?

5/16 = 0.3125. To 2 decimal places, that is 0.31.

Is 5/16 a recurring decimal?

No. 16 × 625 = 10,000, so 5/16 is exactly 3,125/10,000 and the decimal stops at 0.3125.

Is 5/16 more or less than a half?

5/16 is less than a half: 0.3125 is less than 0.5. Half of 16 is 8, and 5 is less than 8.

What is 5/16 as a percentage?

5/16 = 31.25%. To 1 decimal place, that is 31.3%.

Which fractions are the same as 5/16?

10/32, 15/48, 20/64, 25/80 and every other fraction you make by multiplying the top and bottom of 5/16 by the same number. They all equal 0.3125.

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.