Subtract 9/18 from 10/63
10/63 - 9/18 is -43/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
10/63 = 10 × 2/63 × 2 = 20/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
9/18 = 9 × 7/18 × 7 = 63/126 - Subtract the two like fractions:
20/126 - 63/126 = 20 - 63/126 = -43/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/63-9/18 10/63-9/36 30/63-9/18 10/63-27/18 10/63-9/54 50/63-9/18 10/63-45/18 10/63-9/90 70/63-9/18 10/63-63/18