Subtract 21/14 from 4/10
1st number: 4/10, 2nd number: 1 7/14
4/10 - 21/14 is -11/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 14 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
4/10 = 4 × 7/10 × 7 = 28/70 - Likewise, for the 2nd fraction, since 14 × 5 = 70,
21/14 = 21 × 5/14 × 5 = 105/70 - Subtract the two like fractions:
28/70 - 105/70 = 28 - 105/70 = -77/70 - After reducing the fraction, the answer is -11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/10-21/14 4/10-42/14 4/20-21/14 4/10-21/28 12/10-21/14 4/10-63/14 4/30-21/14 4/10-21/42 20/10-21/14 4/50-21/14 4/10-21/70 28/10-21/14 4/70-21/14 4/10-21/98