Subtract 5/56 from 1/40
1/40 - 5/56 is -9/140.
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,
5/56 = 5 × 5/56 × 5 = 25/280 - Subtract the two like fractions:
7/280 - 25/280 = 7 - 25/280 = -18/280 - After reducing the fraction, the answer is -9/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40-5/56 1/40-10/56 1/80-5/56 3/40-5/56 1/40-15/56 5/40-5/56 1/40-25/56 7/40-5/56 1/40-35/56