Subtract 49/40 from 12/56
1st number: 12/56, 2nd number: 1 9/40
12/56 - 49/40 is -283/280.
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,
12/56 = 12 × 5/56 × 5 = 60/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
49/40 = 49 × 7/40 × 7 = 343/280 - Subtract the two like fractions:
60/280 - 343/280 = 60 - 343/280 = -283/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/56-49/40 12/56-98/40 12/56-49/80 36/56-49/40 60/56-49/40 84/56-49/40