Subtract 18/63 from 1/9
1/9 - 18/63 is -11/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
1/9 = 1 × 7/9 × 7 = 7/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
18/63 = 18 × 1/63 × 1 = 18/63 - Subtract the two like fractions:
7/63 - 18/63 = 7 - 18/63 = -11/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/9-18/63 1/9-36/63 1/18-18/63 3/9-18/63 1/9-54/63 1/27-18/63 5/9-18/63 1/9-90/63 1/45-18/63 7/9-18/63 1/63-18/63