Add 27/18 and 90/81
1st number: 1 9/18, 2nd number: 1 9/81
27/18 + 90/81 is 47/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 18 × 9 = 162,
27/18 = 27 × 9/18 × 9 = 243/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
90/81 = 90 × 2/81 × 2 = 180/162 - Add the two like fractions:
243/162 + 180/162 = 243 + 180/162 = 423/162 - 423/162 simplified gives 47/18
- So, 27/18 + 90/81 = 47/18
In mixed form: 211/18
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