Subtract 56/30 from 21/14
1st number: 1 7/14, 2nd number: 1 26/30
21/14 - 56/30 is -11/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
21/14 = 21 × 15/14 × 15 = 315/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
56/30 = 56 × 7/30 × 7 = 392/210 - Subtract the two like fractions:
315/210 - 392/210 = 315 - 392/210 = -77/210 - After reducing the fraction, the answer is -11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14-56/30 21/28-56/30 21/14-56/60 63/14-56/30 21/42-56/30 21/14-56/90 21/70-56/30 21/98-56/30