Subtract 27/56 from 7/70
7/70 - 27/56 is -107/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
7/70 = 7 × 4/70 × 4 = 28/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
27/56 = 27 × 5/56 × 5 = 135/280 - Subtract the two like fractions:
28/280 - 135/280 = 28 - 135/280 = -107/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70-27/56 7/70-54/56 21/70-27/56 7/70-81/56 35/70-27/56 49/70-27/56