Subtract 9/20 from 3/6
3/6 - 9/20 is 1/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 6 × 10 = 60,
3/6 = 3 × 10/6 × 10 = 30/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
9/20 = 9 × 3/20 × 3 = 27/60 - Subtract the two like fractions:
30/60 - 27/60 = 30 - 27/60 = 3/60 - After reducing the fraction, the answer is 1/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 3/6-18/20 3/12-9/20 3/6-9/40 9/6-9/20 3/6-27/20 3/18-9/20 3/6-9/60 15/6-9/20 3/6-45/20 3/30-9/20 21/6-9/20 3/6-63/20 3/42-9/20