Subtract 56/63 from 10/42
10/42 - 56/63 is -41/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
10/42 = 10 × 3/42 × 3 = 30/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
56/63 = 56 × 2/63 × 2 = 112/126 - Subtract the two like fractions:
30/126 - 112/126 = 30 - 112/126 = -82/126 - After reducing the fraction, the answer is -41/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/42-56/63 10/84-56/63 30/42-56/63 50/42-56/63 70/42-56/63