Subtract 8/14 from 1/20
1/20 - 8/14 is -73/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 14 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
1/20 = 1 × 7/20 × 7 = 7/140 - Likewise, for the 2nd fraction, since 14 × 10 = 140,
8/14 = 8 × 10/14 × 10 = 80/140 - Subtract the two like fractions:
7/140 - 80/140 = 7 - 80/140 = -73/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20-8/14 1/20-16/14 1/40-8/14 1/20-8/28 3/20-8/14 1/20-24/14 1/60-8/14 1/20-8/42 5/20-8/14 1/20-40/14 1/20-8/70 7/20-8/14 1/20-56/14 1/20-8/98