Subtract 3/36 from 15/18
15/18 - 3/36 is 3/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
15/18 = 15 × 2/18 × 2 = 30/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
3/36 = 3 × 1/36 × 1 = 3/36 - Subtract the two like fractions:
30/36 - 3/36 = 30 - 3/36 = 27/36 - After reducing the fraction, the answer is 3/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18-3/36 15/18-6/36 15/36-3/36 15/18-3/72 45/18-3/36 15/18-9/36 15/54-3/36 75/18-3/36 15/18-15/36 15/90-3/36 15/18-21/36