Subtract 28/30 from 56/8
1st number: 7 0/8, 2nd number: 28/30
56/8 - 28/30 is 91/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
56/8 = 56 × 15/8 × 15 = 840/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
28/30 = 28 × 4/30 × 4 = 112/120 - Subtract the two like fractions:
840/120 - 112/120 = 840 - 112/120 = 728/120 - After reducing the fraction, the answer is 91/15
- In mixed form: 61/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8-56/30 56/16-28/30 56/8-28/60 56/8-84/30 56/24-28/30 56/8-28/90 56/40-28/30