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