Subtract 21/16 from 10/63
1st number: 10/63, 2nd number: 1 5/16
10/63 - 21/16 is -1163/1008.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 16 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 63 × 16 = 1008,
10/63 = 10 × 16/63 × 16 = 160/1008 - Likewise, for the 2nd fraction, since 16 × 63 = 1008,
21/16 = 21 × 63/16 × 63 = 1323/1008 - Subtract the two like fractions:
160/1008 - 1323/1008 = 160 - 1323/1008 = -1163/1008
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/63-21/16 10/63-42/16 10/63-21/32 30/63-21/16 10/63-63/16 10/63-21/48 50/63-21/16 10/63-21/80 70/63-21/16