Subtract 63/24 from 90/18
1st number: 5 0/18, 2nd number: 2 15/24
90/18 - 63/24 is 19/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 24 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
90/18 = 90 × 4/18 × 4 = 360/72 - Likewise, for the 2nd fraction, since 24 × 3 = 72,
63/24 = 63 × 3/24 × 3 = 189/72 - Subtract the two like fractions:
360/72 - 189/72 = 360 - 189/72 = 171/72 - After reducing the fraction, the answer is 19/8
- In mixed form: 23/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/36-63/24 90/18-63/48 90/54-63/24 90/18-63/72