Subtract 21/63 from 45/2
1st number: 22 1/2, 2nd number: 21/63
45/2 - 21/63 is 133/6.
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,
45/2 = 45 × 63/2 × 63 = 2835/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
21/63 = 21 × 2/63 × 2 = 42/126 - Subtract the two like fractions:
2835/126 - 42/126 = 2835 - 42/126 = 2793/126 - After reducing the fraction, the answer is 133/6
- In mixed form: 221/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-21/63 45/2-42/63 45/4-21/63 45/6-21/63 45/10-21/63 45/14-21/63