Subtract 6/21 from 7/14
7/14 - 6/21 is 3/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
7/14 = 7 × 3/14 × 3 = 21/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
6/21 = 6 × 2/21 × 2 = 12/42 - Subtract the two like fractions:
21/42 - 12/42 = 21 - 12/42 = 9/42 - After reducing the fraction, the answer is 3/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 7/14-12/21 7/28-6/21 7/14-6/42 21/14-6/21 7/14-18/21 7/42-6/21 7/14-6/63 35/14-6/21 7/14-30/21 7/70-6/21 49/14-6/21 7/14-42/21 7/98-6/21