Subtract 49/24 from 21/20
1st number: 1 1/20, 2nd number: 2 1/24
21/20 - 49/24 is -119/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 20 × 6 = 120,
21/20 = 21 × 6/20 × 6 = 126/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
49/24 = 49 × 5/24 × 5 = 245/120 - Subtract the two like fractions:
126/120 - 245/120 = 126 - 245/120 = -119/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/20-49/24 21/20-98/24 21/40-49/24 21/20-49/48 63/20-49/24 21/60-49/24 21/20-49/72