Subtract 3/40 from 5/56
5/56 - 3/40 is 1/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
5/56 = 5 × 5/56 × 5 = 25/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
3/40 = 3 × 7/40 × 7 = 21/280 - Subtract the two like fractions:
25/280 - 21/280 = 25 - 21/280 = 4/280 - After reducing the fraction, the answer is 1/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/56-3/40 5/56-6/40 5/56-3/80 15/56-3/40 5/56-9/40 25/56-3/40 5/56-15/40 35/56-3/40 5/56-21/40