Subtract 42/54 from 12/2
1st number: 6 0/2, 2nd number: 42/54
12/2 - 42/54 is 47/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 2 × 27 = 54,
12/2 = 12 × 27/2 × 27 = 324/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
42/54 = 42 × 1/54 × 1 = 42/54 - Subtract the two like fractions:
324/54 - 42/54 = 324 - 42/54 = 282/54 - After reducing the fraction, the answer is 47/9
- In mixed form: 52/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/2-42/54 12/2-84/54 12/4-42/54 36/2-42/54 12/6-42/54 60/2-42/54 12/10-42/54 84/2-42/54 12/14-42/54