Subtract 32/21 from 56/63
1st number: 56/63, 2nd number: 1 11/21
56/63 - 32/21 is -40/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
56/63 = 56 × 1/63 × 1 = 56/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
32/21 = 32 × 3/21 × 3 = 96/63 - Subtract the two like fractions:
56/63 - 96/63 = 56 - 96/63 = -40/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/63-64/21 56/63-32/42 56/63-96/21 56/63-32/63