Add 90/63 and 84/81, Solve 1 27/63 + 1 3/81 as a fraction

Add 90/63 and 84/81

1^st number: 1 27/63, 2^nd number: 1 3/81

90/63 + 84/81 is 466/189.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 81 is 567

Next, find the equivalent fraction of both fractional numbers with denominator 567
For the 1st fraction, since 63 × 9 = 567,
90/63 = 90 × 9/63 × 9 = 810/567
Likewise, for the 2nd fraction, since 81 × 7 = 567,
84/81 = 84 × 7/81 × 7 = 588/567
Add the two like fractions:
810/567 + 588/567 = 810 + 588/567 = 1398/567
1398/567 simplified gives 466/189
So, 90/63 + 84/81 = 466/189
In mixed form: 288/189

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