Subtract 12/81 from 12/2
1st number: 6 0/2, 2nd number: 12/81
12/2 - 12/81 is 158/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 2 × 81 = 162,
12/2 = 12 × 81/2 × 81 = 972/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
12/81 = 12 × 2/81 × 2 = 24/162 - Subtract the two like fractions:
972/162 - 24/162 = 972 - 24/162 = 948/162 - After reducing the fraction, the answer is 158/27
- In mixed form: 523/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/2-12/81 12/2-24/81 12/4-12/81 36/2-12/81 12/2-36/81 12/6-12/81 60/2-12/81 12/2-60/81 12/10-12/81 84/2-12/81 12/2-84/81 12/14-12/81