Subtract 72/27 from 7/24
1st number: 7/24, 2nd number: 2 18/27
7/24 - 72/27 is -19/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 24 × 9 = 216,
7/24 = 7 × 9/24 × 9 = 63/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
72/27 = 72 × 8/27 × 8 = 576/216 - Subtract the two like fractions:
63/216 - 576/216 = 63 - 576/216 = -513/216 - After reducing the fraction, the answer is -19/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/24-72/27 7/48-72/27 7/24-72/54 21/24-72/27 7/72-72/27 7/24-72/81 35/24-72/27 49/24-72/27