Subtract 56/63 from 90/5
1st number: 18 0/5, 2nd number: 56/63
90/5 - 56/63 is 154/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 5 × 63 = 315,
90/5 = 90 × 63/5 × 63 = 5670/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
56/63 = 56 × 5/63 × 5 = 280/315 - Subtract the two like fractions:
5670/315 - 280/315 = 5670 - 280/315 = 5390/315 - After reducing the fraction, the answer is 154/9
- In mixed form: 171/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10-56/63 90/15-56/63 90/25-56/63 90/35-56/63