Subtract 25/54 from 21/24
21/24 - 25/54 is 89/216.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 24 × 9 = 216,
21/24 = 21 × 9/24 × 9 = 189/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
25/54 = 25 × 4/54 × 4 = 100/216 - Subtract the two like fractions:
189/216 - 100/216 = 189 - 100/216 = 89/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24-25/54 21/24-50/54 21/48-25/54 63/24-25/54 21/24-75/54 21/72-25/54