Subtract 84/81 from 10/2
1st number: 5 0/2, 2nd number: 1 3/81
10/2 - 84/81 is 107/27.
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,
10/2 = 10 × 81/2 × 81 = 810/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
84/81 = 84 × 2/81 × 2 = 168/162 - Subtract the two like fractions:
810/162 - 168/162 = 810 - 168/162 = 642/162 - After reducing the fraction, the answer is 107/27
- In mixed form: 326/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/2-84/81 10/4-84/81 30/2-84/81 10/6-84/81 50/2-84/81 70/2-84/81 10/14-84/81