Subtract 81/20 from 6/14
1st number: 6/14, 2nd number: 4 1/20
6/14 - 81/20 is -507/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 14 × 10 = 140,
6/14 = 6 × 10/14 × 10 = 60/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
81/20 = 81 × 7/20 × 7 = 567/140 - Subtract the two like fractions:
60/140 - 567/140 = 60 - 567/140 = -507/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/14-81/20 6/28-81/20 6/14-81/40 18/14-81/20 6/42-81/20 6/14-81/60 30/14-81/20 6/70-81/20 42/14-81/20 6/98-81/20