Subtract 9/14 from 1/20
1/20 - 9/14 is -83/140.
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,
9/14 = 9 × 10/14 × 10 = 90/140 - Subtract the two like fractions:
7/140 - 90/140 = 7 - 90/140 = -83/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20-9/14 1/20-18/14 1/40-9/14 1/20-9/28 3/20-9/14 1/20-27/14 1/60-9/14 1/20-9/42 5/20-9/14 1/20-45/14 1/20-9/70 7/20-9/14 1/20-63/14 1/20-9/98