Subtract 4/8 from 18/56
18/56 - 4/8 is -5/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
18/56 = 18 × 1/56 × 1 = 18/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
4/8 = 4 × 7/8 × 7 = 28/56 - Subtract the two like fractions:
18/56 - 28/56 = 18 - 28/56 = -10/56 - After reducing the fraction, the answer is -5/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56-4/8 18/56-4/16 54/56-4/8 18/56-12/8 18/56-4/24 90/56-4/8 18/56-20/8 18/56-4/40 18/56-28/8 18/56-4/56