Subtract 7/3 from 21/14
1st number: 1 7/14, 2nd number: 2 1/3
21/14 - 7/3 is -5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
21/14 = 21 × 3/14 × 3 = 63/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
7/3 = 7 × 14/3 × 14 = 98/42 - Subtract the two like fractions:
63/42 - 98/42 = 63 - 98/42 = -35/42 - After reducing the fraction, the answer is -5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14-7/3 21/14-14/3 21/28-7/3 21/14-7/6 63/14-7/3 21/14-21/3 21/42-7/3 21/14-7/9 21/14-35/3 21/70-7/3 21/14-7/15 21/14-49/3 21/98-7/3 21/14-7/21