Subtract 56/63 from 20/7
1st number: 2 6/7, 2nd number: 56/63
20/7 - 56/63 is 124/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
20/7 = 20 × 9/7 × 9 = 180/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
56/63 = 56 × 1/63 × 1 = 56/63 - Subtract the two like fractions:
180/63 - 56/63 = 180 - 56/63 = 124/63 - In mixed form: 161/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7-56/63 20/14-56/63 60/7-56/63 20/21-56/63 20/35-56/63 20/49-56/63