Subtract 25/81 from 50/18
1st number: 2 14/18, 2nd number: 25/81
50/18 - 25/81 is 200/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 18 × 9 = 162,
50/18 = 50 × 9/18 × 9 = 450/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
25/81 = 25 × 2/81 × 2 = 50/162 - Subtract the two like fractions:
450/162 - 50/162 = 450 - 50/162 = 400/162 - After reducing the fraction, the answer is 200/81
- In mixed form: 238/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/18-50/81 50/36-25/81 50/18-75/81 50/54-25/81 50/90-25/81