Subtract 14/15 from 42/18
1st number: 2 6/18, 2nd number: 14/15
42/18 - 14/15 is 7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
14/15 = 14 × 6/15 × 6 = 84/90 - Subtract the two like fractions:
210/90 - 84/90 = 210 - 84/90 = 126/90 - After reducing the fraction, the answer is 7/5
- In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-14/15 42/18-28/15 42/36-14/15 42/18-14/30 42/18-42/15 42/54-14/15 42/18-14/45 42/18-70/15 42/90-14/15 42/18-14/75 42/18-98/15