Subtract 21/36 from 45/2
1st number: 22 1/2, 2nd number: 21/36
45/2 - 21/36 is 263/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 2 × 18 = 36,
45/2 = 45 × 18/2 × 18 = 810/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
21/36 = 21 × 1/36 × 1 = 21/36 - Subtract the two like fractions:
810/36 - 21/36 = 810 - 21/36 = 789/36 - After reducing the fraction, the answer is 263/12
- In mixed form: 2111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-21/36 45/2-42/36 45/4-21/36 45/2-21/72 45/2-63/36 45/6-21/36 45/10-21/36 45/14-21/36