Subtract 1/8 from 12/18
12/18 - 1/8 is 13/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
12/18 = 12 × 4/18 × 4 = 48/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
1/8 = 1 × 9/8 × 9 = 9/72 - Subtract the two like fractions:
48/72 - 9/72 = 48 - 9/72 = 39/72 - After reducing the fraction, the answer is 13/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18-1/8 12/18-2/8 12/36-1/8 12/18-1/16 36/18-1/8 12/18-3/8 12/54-1/8 12/18-1/24 60/18-1/8 12/18-5/8 12/90-1/8 12/18-1/40 84/18-1/8 12/18-7/8 12/18-1/56