Subtract 24/21 from 45/2
1st number: 22 1/2, 2nd number: 1 3/21
45/2 - 24/21 is 299/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
45/2 = 45 × 21/2 × 21 = 945/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
24/21 = 24 × 2/21 × 2 = 48/42 - Subtract the two like fractions:
945/42 - 48/42 = 945 - 48/42 = 897/42 - After reducing the fraction, the answer is 299/14
- In mixed form: 215/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-24/21 45/2-48/21 45/4-24/21 45/2-24/42 45/2-72/21 45/6-24/21 45/2-24/63 45/10-24/21 45/14-24/21