Subtract 10/18 from 10/63
10/63 - 10/18 is -25/63.
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,
10/18 = 10 × 7/18 × 7 = 70/126 - Subtract the two like fractions:
20/126 - 70/126 = 20 - 70/126 = -50/126 - After reducing the fraction, the answer is -25/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/63-10/18 10/63-20/18 10/63-10/36 30/63-10/18 10/63-30/18 10/63-10/54 50/63-10/18 10/63-50/18 10/63-10/90 70/63-10/18 10/63-70/18