Subtract 30/63 from 15/6
1st number: 2 3/6, 2nd number: 30/63
15/6 - 30/63 is 85/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 6 × 21 = 126,
15/6 = 15 × 21/6 × 21 = 315/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
30/63 = 30 × 2/63 × 2 = 60/126 - Subtract the two like fractions:
315/126 - 60/126 = 315 - 60/126 = 255/126 - After reducing the fraction, the answer is 85/42
- In mixed form: 21/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/6-30/63 15/6-60/63 15/12-30/63 45/6-30/63 15/6-90/63 15/18-30/63 75/6-30/63 15/30-30/63 15/42-30/63