Subtract 42/54 from 30/14
1st number: 2 2/14, 2nd number: 42/54
30/14 - 42/54 is 86/63.
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,
30/14 = 30 × 27/14 × 27 = 810/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
42/54 = 42 × 7/54 × 7 = 294/378 - Subtract the two like fractions:
810/378 - 294/378 = 810 - 294/378 = 516/378 - After reducing the fraction, the answer is 86/63
- In mixed form: 123/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/14-42/54 30/14-84/54 30/28-42/54 90/14-42/54 30/42-42/54 30/70-42/54 30/98-42/54