Subtract 15/42 from 56/12
1st number: 4 8/12, 2nd number: 15/42
56/12 - 15/42 is 181/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
56/12 = 56 × 7/12 × 7 = 392/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
15/42 = 15 × 2/42 × 2 = 30/84 - Subtract the two like fractions:
392/84 - 30/84 = 392 - 30/84 = 362/84 - After reducing the fraction, the answer is 181/42
- In mixed form: 413/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12-30/42 56/24-15/42 56/12-15/84 56/12-45/42 56/36-15/42 56/12-75/42 56/60-15/42 56/84-15/42