Subtract 20/36 from 81/6
1st number: 13 3/6, 2nd number: 20/36
81/6 - 20/36 is 233/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 6 × 6 = 36,
81/6 = 81 × 6/6 × 6 = 486/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
20/36 = 20 × 1/36 × 1 = 20/36 - Subtract the two like fractions:
486/36 - 20/36 = 486 - 20/36 = 466/36 - After reducing the fraction, the answer is 233/18
- In mixed form: 1217/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/6-40/36 81/12-20/36 81/6-20/72 81/6-60/36 81/18-20/36 81/30-20/36 81/42-20/36