Subtract 20/14 from 6/18
1st number: 6/18, 2nd number: 1 6/14
6/18 - 20/14 is -23/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
6/18 = 6 × 7/18 × 7 = 42/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
20/14 = 20 × 9/14 × 9 = 180/126 - Subtract the two like fractions:
42/126 - 180/126 = 42 - 180/126 = -138/126 - After reducing the fraction, the answer is -23/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/18-20/14 6/18-40/14 6/36-20/14 6/18-20/28 6/18-60/14 6/54-20/14 6/18-20/42 30/18-20/14 6/90-20/14 6/18-20/70 42/18-20/14 6/18-20/98