Subtract 15/63 from 30/12
1st number: 2 6/12, 2nd number: 15/63
30/12 - 15/63 is 95/42.
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,
30/12 = 30 × 21/12 × 21 = 630/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
15/63 = 15 × 4/63 × 4 = 60/252 - Subtract the two like fractions:
630/252 - 60/252 = 630 - 60/252 = 570/252 - After reducing the fraction, the answer is 95/42
- In mixed form: 211/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12-15/63 30/12-30/63 30/24-15/63 90/12-15/63 30/12-45/63 30/36-15/63 30/12-75/63 30/60-15/63 30/84-15/63