Subtract 8/63 from 42/12
1st number: 3 6/12, 2nd number: 8/63
42/12 - 8/63 is 425/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 12 × 21 = 252,
42/12 = 42 × 21/12 × 21 = 882/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
8/63 = 8 × 4/63 × 4 = 32/252 - Subtract the two like fractions:
882/252 - 32/252 = 882 - 32/252 = 850/252 - After reducing the fraction, the answer is 425/126
- In mixed form: 347/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-8/63 42/12-16/63 42/24-8/63 42/12-24/63 42/36-8/63 42/12-40/63 42/60-8/63 42/12-56/63 42/84-8/63