Subtract 12/14 from 3/18
3/18 - 12/14 is -29/42.
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,
3/18 = 3 × 7/18 × 7 = 21/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
12/14 = 12 × 9/14 × 9 = 108/126 - Subtract the two like fractions:
21/126 - 108/126 = 21 - 108/126 = -87/126 - After reducing the fraction, the answer is -29/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18-12/14 3/18-24/14 3/36-12/14 3/18-12/28 9/18-12/14 3/18-36/14 3/54-12/14 3/18-12/42 15/18-12/14 3/18-60/14 3/90-12/14 3/18-12/70 21/18-12/14 3/18-84/14 3/18-12/98