3/20 as a decimal

The quick way is to make an equivalent fraction with a bottom of 100, because hundredths can be written straight down as a decimal.

1. 20 × 5 = 100.
2. Do the same to the top: 3 × 5 = 15.
3. So 3/20 = 15/100, which is 15 hundredths.

15 hundredths is written 0.15: the last digit goes in the hundredths column.

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

1. 20 does not go into 3, so write 0 and a decimal point, then carry the 3 over as 30 tenths.
2. 20 goes into 30 once, remainder 10. Write 1, and carry the 10 to make 100.
3. 20 goes into 100 5 times exactly. Write 5.
4. The remainder is 0, so the division stops: 3 ÷ 20 = 0.15.

Every twentieth is 5 hundredths: 3/20 is 3 × 5 = 15 hundredths, which is 0.15.

3/20 sits between 0 and 1/4 (0.25). It is closer to 1/4.