Subtract 14/21 from 4/10
4/10 - 14/21 is -4/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
4/10 = 4 × 21/10 × 21 = 84/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
14/21 = 14 × 10/21 × 10 = 140/210 - Subtract the two like fractions:
84/210 - 140/210 = 84 - 140/210 = -56/210 - After reducing the fraction, the answer is -4/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/10-14/21 4/10-28/21 4/20-14/21 4/10-14/42 12/10-14/21 4/10-42/21 4/30-14/21 4/10-14/63 20/10-14/21 4/10-70/21 4/50-14/21 28/10-14/21 4/10-98/21 4/70-14/21