Subtract 21/56 from 1/10
1/10 - 21/56 is -11/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 10 × 28 = 280,
1/10 = 1 × 28/10 × 28 = 28/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Subtract the two like fractions:
28/280 - 105/280 = 28 - 105/280 = -77/280 - After reducing the fraction, the answer is -11/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/10-21/56 1/10-42/56 1/20-21/56 3/10-21/56 1/10-63/56 1/30-21/56 5/10-21/56 1/50-21/56 7/10-21/56 1/70-21/56