Subtract 56/12 from 63/45
1st number: 1 18/45, 2nd number: 4 8/12
63/45 - 56/12 is -49/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
63/45 = 63 × 4/45 × 4 = 252/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
56/12 = 56 × 15/12 × 15 = 840/180 - Subtract the two like fractions:
252/180 - 840/180 = 252 - 840/180 = -588/180 - After reducing the fraction, the answer is -49/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/90-56/12 63/45-56/24 63/45-56/36 63/45-56/60 63/45-56/84