Subtract 40/12 from 3/56
1st number: 3/56, 2nd number: 3 4/12
3/56 - 40/12 is -551/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 12 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
3/56 = 3 × 3/56 × 3 = 9/168 - Likewise, for the 2nd fraction, since 12 × 14 = 168,
40/12 = 40 × 14/12 × 14 = 560/168 - Subtract the two like fractions:
9/168 - 560/168 = 9 - 560/168 = -551/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/56-40/12 3/56-80/12 3/56-40/24 9/56-40/12 3/56-40/36 15/56-40/12 3/56-40/60 21/56-40/12 3/56-40/84