Subtract 24/27 from 7/72
7/72 - 24/27 is -19/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
7/72 = 7 × 3/72 × 3 = 21/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
24/27 = 24 × 8/27 × 8 = 192/216 - Subtract the two like fractions:
21/216 - 192/216 = 21 - 192/216 = -171/216 - After reducing the fraction, the answer is -19/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/72-24/27 7/72-48/27 7/72-24/54 21/72-24/27 7/72-72/27 7/72-24/81 35/72-24/27 49/72-24/27