Subtract 32/54 from 42/12
1st number: 3 6/12, 2nd number: 32/54
42/12 - 32/54 is 157/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
42/12 = 42 × 9/12 × 9 = 378/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
32/54 = 32 × 2/54 × 2 = 64/108 - Subtract the two like fractions:
378/108 - 64/108 = 378 - 64/108 = 314/108 - After reducing the fraction, the answer is 157/54
- In mixed form: 249/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-32/54 42/12-64/54 42/24-32/54 42/12-96/54 42/36-32/54 42/60-32/54 42/84-32/54