Subtract 1/56 from 1/20
1/20 - 1/56 is 9/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
1/20 = 1 × 14/20 × 14 = 14/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
1/56 = 1 × 5/56 × 5 = 5/280 - Subtract the two like fractions:
14/280 - 5/280 = 14 - 5/280 = 9/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20-1/56 1/20-2/56 1/40-1/56 3/20-1/56 1/20-3/56 1/60-1/56 5/20-1/56 1/20-5/56 7/20-1/56 1/20-7/56