Subtract 24/81 from 5/2
1st number: 2 1/2, 2nd number: 24/81
5/2 - 24/81 is 119/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 2 × 81 = 162,
5/2 = 5 × 81/2 × 81 = 405/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
24/81 = 24 × 2/81 × 2 = 48/162 - Subtract the two like fractions:
405/162 - 48/162 = 405 - 48/162 = 357/162 - After reducing the fraction, the answer is 119/54
- In mixed form: 211/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/2-24/81 5/2-48/81 5/4-24/81 15/2-24/81 5/2-72/81 5/6-24/81 25/2-24/81 5/10-24/81 35/2-24/81 5/14-24/81