Subtract 90/5 from 18/14
1st number: 1 4/14, 2nd number: 18 0/5
18/14 - 90/5 is -117/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
18/14 = 18 × 5/14 × 5 = 90/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
90/5 = 90 × 14/5 × 14 = 1260/70 - Subtract the two like fractions:
90/70 - 1260/70 = 90 - 1260/70 = -1170/70 - After reducing the fraction, the answer is -117/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/14-90/5 18/28-90/5 18/14-90/10 54/14-90/5 18/42-90/5 18/14-90/15 90/14-90/5 18/70-90/5 18/14-90/25 18/98-90/5 18/14-90/35