Subtract 90/5 from 40/14
1st number: 2 12/14, 2nd number: 18 0/5
40/14 - 90/5 is -106/7.
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,
40/14 = 40 × 5/14 × 5 = 200/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
90/5 = 90 × 14/5 × 14 = 1260/70 - Subtract the two like fractions:
200/70 - 1260/70 = 200 - 1260/70 = -1060/70 - After reducing the fraction, the answer is -106/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14-90/5 40/28-90/5 40/14-90/10 40/42-90/5 40/14-90/15 40/70-90/5 40/14-90/25 40/98-90/5 40/14-90/35