Subtract 14/63 from 10/21
10/21 - 14/63 is 16/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
10/21 = 10 × 3/21 × 3 = 30/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
14/63 = 14 × 1/63 × 1 = 14/63 - Subtract the two like fractions:
30/63 - 14/63 = 30 - 14/63 = 16/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21-14/63 10/21-28/63 10/42-14/63 30/21-14/63 10/21-42/63 10/63-14/63 50/21-14/63 10/21-70/63 70/21-14/63 10/21-98/63