Subtract 75/24 from 21/54
1st number: 21/54, 2nd number: 3 3/24
21/54 - 75/24 is -197/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 24 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
21/54 = 21 × 4/54 × 4 = 84/216 - Likewise, for the 2nd fraction, since 24 × 9 = 216,
75/24 = 75 × 9/24 × 9 = 675/216 - Subtract the two like fractions:
84/216 - 675/216 = 84 - 675/216 = -591/216 - After reducing the fraction, the answer is -197/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/54-75/24 21/54-75/48 63/54-75/24 21/54-75/72