Subtract 45/18 from 63/5
1st number: 12 3/5, 2nd number: 2 9/18
63/5 - 45/18 is 101/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
63/5 = 63 × 18/5 × 18 = 1134/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
45/18 = 45 × 5/18 × 5 = 225/90 - Subtract the two like fractions:
1134/90 - 225/90 = 1134 - 225/90 = 909/90 - After reducing the fraction, the answer is 101/10
- In mixed form: 101/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/5-90/18 63/10-45/18 63/5-45/36 63/15-45/18 63/5-45/54 63/25-45/18 63/5-45/90 63/35-45/18