Subtract 12/18 from 2/8
2/8 - 12/18 is -5/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
2/8 = 2 × 9/8 × 9 = 18/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
12/18 = 12 × 4/18 × 4 = 48/72 - Subtract the two like fractions:
18/72 - 48/72 = 18 - 48/72 = -30/72 - After reducing the fraction, the answer is -5/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8-12/18 2/8-24/18 2/16-12/18 2/8-12/36 6/8-12/18 2/8-36/18 2/24-12/18 2/8-12/54 10/8-12/18 2/8-60/18 2/40-12/18 2/8-12/90 14/8-12/18 2/8-84/18 2/56-12/18