Subtract 9/15 from 56/42
1st number: 1 14/42, 2nd number: 9/15
56/42 - 9/15 is 11/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
56/42 = 56 × 5/42 × 5 = 280/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
9/15 = 9 × 14/15 × 14 = 126/210 - Subtract the two like fractions:
280/210 - 126/210 = 280 - 126/210 = 154/210 - After reducing the fraction, the answer is 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42-18/15 56/84-9/15 56/42-9/30 56/42-27/15 56/42-9/45 56/42-45/15 56/42-9/75 56/42-63/15