Subtract 15/56 from 7/5
1st number: 1 2/5, 2nd number: 15/56
7/5 - 15/56 is 317/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 5 × 56 = 280,
7/5 = 7 × 56/5 × 56 = 392/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Subtract the two like fractions:
392/280 - 75/280 = 392 - 75/280 = 317/280 - In mixed form: 137/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/5-15/56 7/5-30/56 7/10-15/56 21/5-15/56 7/5-45/56 7/15-15/56 35/5-15/56 7/5-75/56 7/25-15/56 49/5-15/56 7/35-15/56