Changing Decimals to Fractions

To change a decimal to a fraction, write the digits of the decimal as the top number of a fraction and write the decimal's name as the bottom number of the fraction.

Then reduce the fraction, if possible.

.018

1. Write 18 as the top of the fraction:
18
2. Three places to the right of the decimal means thousandths, so write 1000 as the bottom number:
18/1000
3. Reduce by dividing 2 into the top and bottom numbers:


Practice: Change these decimals or mixed decimals to fractions:
1. .005
2. 3.48
3. 123.456