Subtract 56/63 from 9/15
9/15 - 56/63 is -13/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
9/15 = 9 × 21/15 × 21 = 189/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
56/63 = 56 × 5/63 × 5 = 280/315 - Subtract the two like fractions:
189/315 - 280/315 = 189 - 280/315 = -91/315 - After reducing the fraction, the answer is -13/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15-56/63 9/30-56/63 27/15-56/63 9/45-56/63 45/15-56/63 9/75-56/63 63/15-56/63