Subtract 40/12 from 56/15
1st number: 3 11/15, 2nd number: 3 4/12
56/15 - 40/12 is 2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
56/15 = 56 × 4/15 × 4 = 224/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
40/12 = 40 × 5/12 × 5 = 200/60 - Subtract the two like fractions:
224/60 - 200/60 = 224 - 200/60 = 24/60 - After reducing the fraction, the answer is 2/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15-80/12 56/30-40/12 56/15-40/24 56/45-40/12 56/15-40/36 56/75-40/12 56/15-40/60 56/15-40/84