Subtract 7/56 from 1/40
1/40 - 7/56 is -1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
1/40 = 1 × 7/40 × 7 = 7/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
7/56 = 7 × 5/56 × 5 = 35/280 - Subtract the two like fractions:
7/280 - 35/280 = 7 - 35/280 = -28/280 - After reducing the fraction, the answer is -1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40-7/56 1/40-14/56 1/80-7/56 3/40-7/56 1/40-21/56 5/40-7/56 1/40-35/56 7/40-7/56 1/40-49/56