Add 90/81 and 27/42
1st number: 1 9/81, 2nd number: 27/42
90/81 + 27/42 is 221/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 42 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 81 × 14 = 1134,
90/81 = 90 × 14/81 × 14 = 1260/1134 - Likewise, for the 2nd fraction, since 42 × 27 = 1134,
27/42 = 27 × 27/42 × 27 = 729/1134 - Add the two like fractions:
1260/1134 + 729/1134 = 1260 + 729/1134 = 1989/1134 - 1989/1134 simplified gives 221/126
- So, 90/81 + 27/42 = 221/126
In mixed form: 195/126
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