Subtract 63/21 from 5/16
1st number: 5/16, 2nd number: 3 0/21
5/16 - 63/21 is -43/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
5/16 = 5 × 21/16 × 21 = 105/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
63/21 = 63 × 16/21 × 16 = 1008/336 - Subtract the two like fractions:
105/336 - 1008/336 = 105 - 1008/336 = -903/336 - After reducing the fraction, the answer is -43/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/16-63/21 5/32-63/21 5/16-63/42 15/16-63/21 5/48-63/21 25/16-63/21 5/80-63/21 35/16-63/21