Subtract 15/63 from 1/18
1/18 - 15/63 is -23/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
1/18 = 1 × 7/18 × 7 = 7/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
15/63 = 15 × 2/63 × 2 = 30/126 - Subtract the two like fractions:
7/126 - 30/126 = 7 - 30/126 = -23/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/18-15/63 1/18-30/63 1/36-15/63 3/18-15/63 1/18-45/63 1/54-15/63 5/18-15/63 1/18-75/63 1/90-15/63 7/18-15/63