Subtract 12/81 from 12/6
1st number: 2 0/6, 2nd number: 12/81
12/6 - 12/81 is 50/27.
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,
12/6 = 12 × 27/6 × 27 = 324/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
12/81 = 12 × 2/81 × 2 = 24/162 - Subtract the two like fractions:
324/162 - 24/162 = 324 - 24/162 = 300/162 - After reducing the fraction, the answer is 50/27
- In mixed form: 123/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/6-12/81 12/6-24/81 36/6-12/81 12/6-36/81 12/18-12/81 60/6-12/81 12/6-60/81 12/30-12/81 84/6-12/81 12/6-84/81 12/42-12/81