Subtract 21/12 from 49/15
1st number: 3 4/15, 2nd number: 1 9/12
49/15 - 21/12 is 91/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
49/15 = 49 × 4/15 × 4 = 196/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
21/12 = 21 × 5/12 × 5 = 105/60 - Subtract the two like fractions:
196/60 - 105/60 = 196 - 105/60 = 91/60 - In mixed form: 131/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/15-21/12 49/15-42/12 49/30-21/12 49/15-21/24 49/15-63/12 49/45-21/12 49/15-21/36 49/75-21/12 49/15-21/60 49/15-21/84