Subtract 40/3 from 45/56
1st number: 45/56, 2nd number: 13 1/3
45/56 - 40/3 is -2105/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 3 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
45/56 = 45 × 3/56 × 3 = 135/168 - Likewise, for the 2nd fraction, since 3 × 56 = 168,
40/3 = 40 × 56/3 × 56 = 2240/168 - Subtract the two like fractions:
135/168 - 2240/168 = 135 - 2240/168 = -2105/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56-40/3 45/56-80/3 45/56-40/6 45/56-40/9 45/56-40/15 45/56-40/21