Subtract 5/24 from 21/27
21/27 - 5/24 is 41/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 24 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 27 × 8 = 216,
21/27 = 21 × 8/27 × 8 = 168/216 - Likewise, for the 2nd fraction, since 24 × 9 = 216,
5/24 = 5 × 9/24 × 9 = 45/216 - Subtract the two like fractions:
168/216 - 45/216 = 168 - 45/216 = 123/216 - After reducing the fraction, the answer is 41/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/27-5/24 21/27-10/24 21/54-5/24 21/27-5/48 63/27-5/24 21/27-15/24 21/81-5/24 21/27-5/72 21/27-25/24 21/27-35/24