Subtract 7/45 from 56/15
1st number: 3 11/15, 2nd number: 7/45
56/15 - 7/45 is 161/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
56/15 = 56 × 3/15 × 3 = 168/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
7/45 = 7 × 1/45 × 1 = 7/45 - Subtract the two like fractions:
168/45 - 7/45 = 168 - 7/45 = 161/45 - In mixed form: 326/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15-14/45 56/30-7/45 56/15-7/90 56/15-21/45 56/45-7/45 56/15-35/45 56/75-7/45 56/15-49/45