Subtract 4/72 from 1/54
1/54 - 4/72 is -1/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 72 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
1/54 = 1 × 4/54 × 4 = 4/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
4/72 = 4 × 3/72 × 3 = 12/216 - Subtract the two like fractions:
4/216 - 12/216 = 4 - 12/216 = -8/216 - After reducing the fraction, the answer is -1/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/54-4/72 1/54-8/72 3/54-4/72 1/54-12/72 5/54-4/72 1/54-20/72 7/54-4/72 1/54-28/72