Subtract 10/63 from 21/56
21/56 - 10/63 is 109/504.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
21/56 = 21 × 9/56 × 9 = 189/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
10/63 = 10 × 8/63 × 8 = 80/504 - Subtract the two like fractions:
189/504 - 80/504 = 189 - 80/504 = 109/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/56-10/63 21/56-20/63 63/56-10/63 21/56-30/63 21/56-50/63 21/56-70/63