Subtract 14/18 from 90/12
1st number: 7 6/12, 2nd number: 14/18
90/12 - 14/18 is 121/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
90/12 = 90 × 3/12 × 3 = 270/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
14/18 = 14 × 2/18 × 2 = 28/36 - Subtract the two like fractions:
270/36 - 28/36 = 270 - 28/36 = 242/36 - After reducing the fraction, the answer is 121/18
- In mixed form: 613/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12-28/18 90/24-14/18 90/12-14/36 90/12-42/18 90/36-14/18 90/12-14/54 90/12-70/18 90/60-14/18 90/12-14/90 90/12-98/18 90/84-14/18