Add 81/18 and 42/27
1st number: 4 9/18, 2nd number: 1 15/27
81/18 + 42/27 is 109/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
81/18 = 81 × 3/18 × 3 = 243/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
42/27 = 42 × 2/27 × 2 = 84/54 - Add the two like fractions:
243/54 + 84/54 = 243 + 84/54 = 327/54 - 327/54 simplified gives 109/18
- So, 81/18 + 42/27 = 109/18
In mixed form: 61/18
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