Subtract 90/7 from 40/14
1st number: 2 12/14, 2nd number: 12 6/7
40/14 - 90/7 is -10/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 14 × 1 = 14,
40/14 = 40 × 1/14 × 1 = 40/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
90/7 = 90 × 2/7 × 2 = 180/14 - Subtract the two like fractions:
40/14 - 180/14 = 40 - 180/14 = -140/14 - After reducing the fraction, the answer is -10/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14-90/7 40/28-90/7 40/14-90/14 40/42-90/7 40/14-90/21 40/70-90/7 40/14-90/35 40/98-90/7 40/14-90/49