Subtract 20/14 from 9/18
1st number: 9/18, 2nd number: 1 6/14
9/18 - 20/14 is -13/14.
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,
9/18 = 9 × 7/18 × 7 = 63/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
20/14 = 20 × 9/14 × 9 = 180/126 - Subtract the two like fractions:
63/126 - 180/126 = 63 - 180/126 = -117/126 - After reducing the fraction, the answer is -13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18-40/14 9/36-20/14 9/18-20/28 27/18-20/14 9/18-60/14 9/54-20/14 9/18-20/42 45/18-20/14 9/90-20/14 9/18-20/70 63/18-20/14 9/18-20/98