Subtract 63/56 from 45/18
1st number: 2 9/18, 2nd number: 1 7/56
45/18 - 63/56 is 11/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 18 × 28 = 504,
45/18 = 45 × 28/18 × 28 = 1260/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
63/56 = 63 × 9/56 × 9 = 567/504 - Subtract the two like fractions:
1260/504 - 567/504 = 1260 - 567/504 = 693/504 - After reducing the fraction, the answer is 11/8
- In mixed form: 13/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18-63/56 45/36-63/56 45/54-63/56 45/90-63/56