Subtract 50/36 from 81/18
1st number: 4 9/18, 2nd number: 1 14/36
81/18 - 50/36 is 28/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
81/18 = 81 × 2/18 × 2 = 162/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
50/36 = 50 × 1/36 × 1 = 50/36 - Subtract the two like fractions:
162/36 - 50/36 = 162 - 50/36 = 112/36 - After reducing the fraction, the answer is 28/9
- In mixed form: 31/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/36-50/36 81/18-50/72 81/54-50/36 81/90-50/36