Subtract 21/7 from 14/2
1st number: 7 0/2, 2nd number: 3 0/7
14/2 - 21/7 is 4/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
14/2 = 14 × 7/2 × 7 = 98/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
21/7 = 21 × 2/7 × 2 = 42/14 - Subtract the two like fractions:
98/14 - 42/14 = 98 - 42/14 = 56/14 - After reducing the fraction, the answer is 4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/2-21/7 14/2-42/7 14/4-21/7 14/2-21/14 42/2-21/7 14/2-63/7 14/6-21/7 70/2-21/7 14/10-21/7 14/2-21/35 98/2-21/7 14/2-21/49