Subtract 1/70 from 7/56
7/56 - 1/70 is 31/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
7/56 = 7 × 5/56 × 5 = 35/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
1/70 = 1 × 4/70 × 4 = 4/280 - Subtract the two like fractions:
35/280 - 4/280 = 35 - 4/280 = 31/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/56-1/70 7/56-2/70 21/56-1/70 7/56-3/70 35/56-1/70 7/56-5/70 49/56-1/70 7/56-7/70