Subtract 4/56 from 18/36
18/36 - 4/56 is 3/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 36 × 14 = 504,
18/36 = 18 × 14/36 × 14 = 252/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
4/56 = 4 × 9/56 × 9 = 36/504 - Subtract the two like fractions:
252/504 - 36/504 = 252 - 36/504 = 216/504 - After reducing the fraction, the answer is 3/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/36-8/56 18/72-4/56 54/36-4/56 18/36-12/56 90/36-4/56 18/36-20/56 18/36-28/56