Subtract 56/63 from 7/12
7/12 - 56/63 is -11/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 12 × 21 = 252,
7/12 = 7 × 21/12 × 21 = 147/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
56/63 = 56 × 4/63 × 4 = 224/252 - Subtract the two like fractions:
147/252 - 224/252 = 147 - 224/252 = -77/252 - After reducing the fraction, the answer is -11/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12-56/63 7/24-56/63 21/12-56/63 7/36-56/63 35/12-56/63 7/60-56/63 49/12-56/63 7/84-56/63