Subtract 5/20 from 20/15
1st number: 1 5/15, 2nd number: 5/20
20/15 - 5/20 is 13/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
20/15 = 20 × 4/15 × 4 = 80/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
5/20 = 5 × 3/20 × 3 = 15/60 - Subtract the two like fractions:
80/60 - 15/60 = 80 - 15/60 = 65/60 - After reducing the fraction, the answer is 13/12
- In mixed form: 11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15-5/20 20/15-10/20 20/30-5/20 20/15-5/40 60/15-5/20 20/15-15/20 20/45-5/20 20/15-5/60 20/15-25/20 20/75-5/20 20/15-35/20