Subtract 7/54 from 5/72
5/72 - 7/54 is -13/216.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
5/72 = 5 × 3/72 × 3 = 15/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
7/54 = 7 × 4/54 × 4 = 28/216 - Subtract the two like fractions:
15/216 - 28/216 = 15 - 28/216 = -13/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/72-7/54 5/72-14/54 15/72-7/54 5/72-21/54 25/72-7/54 5/72-35/54 35/72-7/54 5/72-49/54