Subtract 90/18 from 63/2
1st number: 31 1/2, 2nd number: 5 0/18
63/2 - 90/18 is 53/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
63/2 = 63 × 9/2 × 9 = 567/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
90/18 = 90 × 1/18 × 1 = 90/18 - Subtract the two like fractions:
567/18 - 90/18 = 567 - 90/18 = 477/18 - After reducing the fraction, the answer is 53/2
- In mixed form: 261/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/4-90/18 63/2-90/36 63/6-90/18 63/2-90/54 63/10-90/18 63/14-90/18