Decimal to Fraction Conversion
Decimal to fraction conversion
calculator
Enter a decimal number and press the Convert button:
How to convert decimal to fraction
- Count the number of digits (d) to the right of the decimal
point of the decimal number x.
Example: 2.56 has 2 digits to
the right of the decimal point, so d=2.
- Calculate the factor (f) for making the decimal number an
integer:
f = 10d
Example:
f = 102 = 100
- Multiply and divide the decimal number x by the factor f:
x × f / f = y / f
Example:
2.56 × 100 / 100 = 256 / 100
- Find the greatest common divisor (gcd) of the fraction.
Example:
gcd(256,100) = 4
- Reduce the fraction by dividing the numerator and
denominator by the gcd value:
Example:
256 / 100 = (256/4) / (100/4) = 64/25
Decimal to fraction conversion table
| Decimal |
Fraction |
| 0.01000000 |
1/100 |
| 0.10000000 |
1/10 |
| 0.11111111 |
1/9 |
| 0.12500000 |
1/8 |
| 0.14285714 |
1/7 |
| 0.16666667 |
1/6 |
| 0.20000000 |
1/5 |
| 0.22222222 |
2/9 |
| 0.25000000 |
1/4 |
| 0.28571429 |
2/7 |
| 0.30000000 |
3/10 |
| 0.33333333 |
1/3 |
| 0.37500000 |
3/8 |
| 0.40000000 |
2/5 |
| 0.42857143 |
3/7 |
| 0.44444444 |
4/9 |
| 0.50000000 |
1/2 |
| 0.55555555 |
5/9 |
| 0.57142858 |
4/7 |
| 0.62500000 |
5/8 |
| 0.66666667 |
2/3 |
| 0.60000000 |
3/5 |
| 0.70000000 |
7/10 |
| 0.71428571 |
5/7 |
| 0.75000000 |
3/4 |
| 0.77777778 |
7/9 |
| 0.80000000 |
4/5 |
| 0.83333333 |
5/6 |
| 0.85714286 |
6/7 |
| 0.87500000 |
7/8 |
| 0.88888889 |
8/9 |
| 0.90000000 |
9/10 |
Fraction to decimal conversion
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See also