Subtract 9/63 from 42/12
1st number: 3 6/12, 2nd number: 9/63
42/12 - 9/63 is 47/14.
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,
9/63 = 9 × 4/63 × 4 = 36/252 - Subtract the two like fractions:
882/252 - 36/252 = 882 - 36/252 = 846/252 - After reducing the fraction, the answer is 47/14
- In mixed form: 35/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-9/63 42/12-18/63 42/24-9/63 42/12-27/63 42/36-9/63 42/12-45/63 42/60-9/63 42/84-9/63