Subtract 27/48 from 7/72
7/72 - 27/48 is -67/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
7/72 = 7 × 2/72 × 2 = 14/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
27/48 = 27 × 3/48 × 3 = 81/144 - Subtract the two like fractions:
14/144 - 81/144 = 14 - 81/144 = -67/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/72-27/48 7/72-54/48 7/72-27/96 21/72-27/48 7/72-81/48 35/72-27/48 49/72-27/48