Subtract 5/16 from 6/21
6/21 - 5/16 is -3/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
6/21 = 6 × 16/21 × 16 = 96/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
5/16 = 5 × 21/16 × 21 = 105/336 - Subtract the two like fractions:
96/336 - 105/336 = 96 - 105/336 = -9/336 - After reducing the fraction, the answer is -3/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21-5/16 6/21-10/16 6/42-5/16 6/21-5/32 18/21-5/16 6/21-15/16 6/63-5/16 6/21-5/48 30/21-5/16 6/21-25/16 6/21-5/80 42/21-5/16 6/21-35/16