Subtract 72/18 from 2/14
1st number: 2/14, 2nd number: 4 0/18
2/14 - 72/18 is -27/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
2/14 = 2 × 9/14 × 9 = 18/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
72/18 = 72 × 7/18 × 7 = 504/126 - Subtract the two like fractions:
18/126 - 504/126 = 18 - 504/126 = -486/126 - After reducing the fraction, the answer is -27/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/14-72/18 2/28-72/18 2/14-72/36 6/14-72/18 2/42-72/18 2/14-72/54 10/14-72/18 2/70-72/18 2/14-72/90 2/98-72/18