Subtract 21/24 from 18/2
1st number: 9 0/2, 2nd number: 21/24
18/2 - 21/24 is 65/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 2 × 12 = 24,
18/2 = 18 × 12/2 × 12 = 216/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
21/24 = 21 × 1/24 × 1 = 21/24 - Subtract the two like fractions:
216/24 - 21/24 = 216 - 21/24 = 195/24 - After reducing the fraction, the answer is 65/8
- In mixed form: 81/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/2-21/24 18/2-42/24 18/4-21/24 18/2-21/48 54/2-21/24 18/2-63/24 18/6-21/24 18/2-21/72 90/2-21/24 18/10-21/24 18/14-21/24