Subtract 98/20 from 15/56
1st number: 15/56, 2nd number: 4 18/20
15/56 - 98/20 is -1297/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
98/20 = 98 × 14/20 × 14 = 1372/280 - Subtract the two like fractions:
75/280 - 1372/280 = 75 - 1372/280 = -1297/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/56-98/20 15/56-98/40 45/56-98/20 15/56-98/60 75/56-98/20