Subtract 15/63 from 42/6
1st number: 7 0/6, 2nd number: 15/63
42/6 - 15/63 is 142/21.
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,
42/6 = 42 × 21/6 × 21 = 882/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
15/63 = 15 × 2/63 × 2 = 30/126 - Subtract the two like fractions:
882/126 - 30/126 = 882 - 30/126 = 852/126 - After reducing the fraction, the answer is 142/21
- In mixed form: 616/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6-15/63 42/6-30/63 42/12-15/63 42/6-45/63 42/18-15/63 42/6-75/63 42/30-15/63