Subtract 28/12 from 56/20
1st number: 2 16/20, 2nd number: 2 4/12
56/20 - 28/12 is 7/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
56/20 = 56 × 3/20 × 3 = 168/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
28/12 = 28 × 5/12 × 5 = 140/60 - Subtract the two like fractions:
168/60 - 140/60 = 168 - 140/60 = 28/60 - After reducing the fraction, the answer is 7/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20-56/12 56/40-28/12 56/20-28/24 56/20-84/12 56/60-28/12 56/20-28/36 56/20-28/60 56/20-28/84