Subtract 63/24 from 20/18
1st number: 1 2/18, 2nd number: 2 15/24
20/18 - 63/24 is -109/72.
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,
20/18 = 20 × 4/18 × 4 = 80/72 - Likewise, for the 2nd fraction, since 24 × 3 = 72,
63/24 = 63 × 3/24 × 3 = 189/72 - Subtract the two like fractions:
80/72 - 189/72 = 80 - 189/72 = -109/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18-63/24 20/36-63/24 20/18-63/48 60/18-63/24 20/54-63/24 20/18-63/72 20/90-63/24