Subtract 40/7 from 20/14
1st number: 1 6/14, 2nd number: 5 5/7
20/14 - 40/7 is -30/7.
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,
20/14 = 20 × 1/14 × 1 = 20/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
40/7 = 40 × 2/7 × 2 = 80/14 - Subtract the two like fractions:
20/14 - 80/14 = 20 - 80/14 = -60/14 - After reducing the fraction, the answer is -30/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14-40/7 20/14-80/7 20/28-40/7 20/14-40/14 60/14-40/7 20/42-40/7 20/14-40/21 20/70-40/7 20/14-40/35 20/98-40/7 20/14-40/49