Subtract 42/54 from 28/14
1st number: 2 0/14, 2nd number: 42/54
28/14 - 42/54 is 11/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 14 × 27 = 378,
28/14 = 28 × 27/14 × 27 = 756/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
42/54 = 42 × 7/54 × 7 = 294/378 - Subtract the two like fractions:
756/378 - 294/378 = 756 - 294/378 = 462/378 - After reducing the fraction, the answer is 11/9
- In mixed form: 12/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/14-42/54 28/14-84/54 84/14-42/54 28/42-42/54 28/70-42/54 28/98-42/54