Subtract 15/9 from 12/14
1st number: 12/14, 2nd number: 1 6/9
12/14 - 15/9 is -17/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
12/14 = 12 × 9/14 × 9 = 108/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
15/9 = 15 × 14/9 × 14 = 210/126 - Subtract the two like fractions:
108/126 - 210/126 = 108 - 210/126 = -102/126 - After reducing the fraction, the answer is -17/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/14-15/9 12/14-30/9 12/28-15/9 12/14-15/18 36/14-15/9 12/14-45/9 12/42-15/9 12/14-15/27 60/14-15/9 12/14-75/9 12/70-15/9 12/14-15/45 84/14-15/9 12/98-15/9 12/14-15/63