Subtract 8/56 from 15/12
1st number: 1 3/12, 2nd number: 8/56
15/12 - 8/56 is 31/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 12 × 14 = 168,
15/12 = 15 × 14/12 × 14 = 210/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
8/56 = 8 × 3/56 × 3 = 24/168 - Subtract the two like fractions:
210/168 - 24/168 = 210 - 24/168 = 186/168 - After reducing the fraction, the answer is 31/28
- In mixed form: 13/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12-8/56 15/12-16/56 15/24-8/56 45/12-8/56 15/12-24/56 15/36-8/56 75/12-8/56 15/12-40/56 15/60-8/56 15/84-8/56