Subtract 12/14 from 15/18
15/18 - 12/14 is -1/42.
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,
15/18 = 15 × 7/18 × 7 = 105/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
12/14 = 12 × 9/14 × 9 = 108/126 - Subtract the two like fractions:
105/126 - 108/126 = 105 - 108/126 = -3/126 - After reducing the fraction, the answer is -1/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18-12/14 15/18-24/14 15/36-12/14 15/18-12/28 45/18-12/14 15/18-36/14 15/54-12/14 15/18-12/42 75/18-12/14 15/18-60/14 15/90-12/14 15/18-12/70 15/18-84/14 15/18-12/98