Subtract 12/6 from 1/81
1st number: 1/81, 2nd number: 2 0/6
1/81 - 12/6 is -161/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 6 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 81 × 2 = 162,
1/81 = 1 × 2/81 × 2 = 2/162 - Likewise, for the 2nd fraction, since 6 × 27 = 162,
12/6 = 12 × 27/6 × 27 = 324/162 - Subtract the two like fractions:
2/162 - 324/162 = 2 - 324/162 = -322/162 - After reducing the fraction, the answer is -161/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/81-12/6 1/81-24/6 3/81-12/6 1/81-36/6 1/81-12/18 5/81-12/6 1/81-60/6 1/81-12/30 7/81-12/6 1/81-84/6 1/81-12/42