Subtract 63/8 from 21/48
1st number: 21/48, 2nd number: 7 7/8
21/48 - 63/8 is -119/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 8 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 48 × 1 = 48,
21/48 = 21 × 1/48 × 1 = 21/48 - Likewise, for the 2nd fraction, since 8 × 6 = 48,
63/8 = 63 × 6/8 × 6 = 378/48 - Subtract the two like fractions:
21/48 - 378/48 = 21 - 378/48 = -357/48 - After reducing the fraction, the answer is -119/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/48-63/8 21/96-63/8 21/48-63/16 63/48-63/8 21/48-63/24 21/48-63/40 21/48-63/56