Subtract 3/18 from 42/14
1st number: 3 0/14, 2nd number: 3/18
42/14 - 3/18 is 17/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
42/14 = 42 × 9/14 × 9 = 378/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
3/18 = 3 × 7/18 × 7 = 21/126 - Subtract the two like fractions:
378/126 - 21/126 = 378 - 21/126 = 357/126 - After reducing the fraction, the answer is 17/6
- In mixed form: 25/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14-3/18 42/14-6/18 42/28-3/18 42/14-3/36 42/14-9/18 42/14-3/54 42/14-15/18 42/70-3/18 42/14-3/90 42/14-21/18 42/98-3/18