Subtract 15/81 from 80/6
1st number: 13 2/6, 2nd number: 15/81
80/6 - 15/81 is 355/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 6 × 27 = 162,
80/6 = 80 × 27/6 × 27 = 2160/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
15/81 = 15 × 2/81 × 2 = 30/162 - Subtract the two like fractions:
2160/162 - 30/162 = 2160 - 30/162 = 2130/162 - After reducing the fraction, the answer is 355/27
- In mixed form: 134/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6-30/81 80/12-15/81 80/6-45/81 80/18-15/81 80/6-75/81 80/30-15/81 80/42-15/81