Subtract 12/54 from 42/24
1st number: 1 18/24, 2nd number: 12/54
42/24 - 12/54 is 55/36.
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,
42/24 = 42 × 9/24 × 9 = 378/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
12/54 = 12 × 4/54 × 4 = 48/216 - Subtract the two like fractions:
378/216 - 48/216 = 378 - 48/216 = 330/216 - After reducing the fraction, the answer is 55/36
- In mixed form: 119/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/24-12/54 42/24-24/54 42/48-12/54 42/24-36/54 42/72-12/54 42/24-60/54 42/24-84/54