Add 10/81 and 21/18
1st number: 10/81, 2nd number: 1 3/18
10/81 + 21/18 is 209/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 18 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 81 × 2 = 162,
10/81 = 10 × 2/81 × 2 = 20/162 - Likewise, for the 2nd fraction, since 18 × 9 = 162,
21/18 = 21 × 9/18 × 9 = 189/162 - Add the two like fractions:
20/162 + 189/162 = 20 + 189/162 = 209/162 - So, 10/81 + 21/18 = 209/162
In mixed form: 147/162
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