Subtract 10/12 from 45/56
45/56 - 10/12 is -5/168.
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,
45/56 = 45 × 3/56 × 3 = 135/168 - Likewise, for the 2nd fraction, since 12 × 14 = 168,
10/12 = 10 × 14/12 × 14 = 140/168 - Subtract the two like fractions:
135/168 - 140/168 = 135 - 140/168 = -5/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56-10/12 45/56-20/12 45/56-10/24 45/56-30/12 45/56-10/36 45/56-50/12 45/56-10/60 45/56-70/12 45/56-10/84