Subtract 40/12 from 4/56
1st number: 4/56, 2nd number: 3 4/12
4/56 - 40/12 is -137/42.
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,
4/56 = 4 × 3/56 × 3 = 12/168 - Likewise, for the 2nd fraction, since 12 × 14 = 168,
40/12 = 40 × 14/12 × 14 = 560/168 - Subtract the two like fractions:
12/168 - 560/168 = 12 - 560/168 = -548/168 - After reducing the fraction, the answer is -137/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/56-40/12 4/56-80/12 4/56-40/24 12/56-40/12 4/56-40/36 20/56-40/12 4/56-40/60 28/56-40/12 4/56-40/84