Subtract 5/6 from 18/56
18/56 - 5/6 is -43/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 6 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
18/56 = 18 × 3/56 × 3 = 54/168 - Likewise, for the 2nd fraction, since 6 × 28 = 168,
5/6 = 5 × 28/6 × 28 = 140/168 - Subtract the two like fractions:
54/168 - 140/168 = 54 - 140/168 = -86/168 - After reducing the fraction, the answer is -43/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56-5/6 18/56-10/6 18/56-5/12 54/56-5/6 18/56-15/6 18/56-5/18 90/56-5/6 18/56-25/6 18/56-5/30 18/56-35/6 18/56-5/42