Add 12/81 and 42/18
1st number: 12/81, 2nd number: 2 6/18
12/81 + 42/18 is 67/27.
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,
12/81 = 12 × 2/81 × 2 = 24/162 - Likewise, for the 2nd fraction, since 18 × 9 = 162,
42/18 = 42 × 9/18 × 9 = 378/162 - Add the two like fractions:
24/162 + 378/162 = 24 + 378/162 = 402/162 - 402/162 simplified gives 67/27
- So, 12/81 + 42/18 = 67/27
In mixed form: 213/27
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