Subtract 28/63 from 42/2
1st number: 21 0/2, 2nd number: 28/63
42/2 - 28/63 is 185/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 2 × 63 = 126,
42/2 = 42 × 63/2 × 63 = 2646/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
28/63 = 28 × 2/63 × 2 = 56/126 - Subtract the two like fractions:
2646/126 - 56/126 = 2646 - 56/126 = 2590/126 - After reducing the fraction, the answer is 185/9
- In mixed form: 205/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2-28/63 42/2-56/63 42/4-28/63 42/2-84/63 42/6-28/63 42/10-28/63 42/14-28/63