Subtract 4/42 from 8/63
8/63 - 4/42 is 2/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
8/63 = 8 × 2/63 × 2 = 16/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
4/42 = 4 × 3/42 × 3 = 12/126 - Subtract the two like fractions:
16/126 - 12/126 = 16 - 12/126 = 4/126 - After reducing the fraction, the answer is 2/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/63-4/42 8/63-8/42 8/63-4/84 24/63-4/42 8/63-12/42 40/63-4/42 8/63-20/42 56/63-4/42 8/63-28/42