Add 90/7 and 8/81, Solve 12 6/7 + 8/81 as a fraction

Add 90/7 and 8/81

1^st number: 12 6/7, 2^nd number: 8/81

90/7 + 8/81 is 7346/567.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567

Next, find the equivalent fraction of both fractional numbers with denominator 567
For the 1st fraction, since 7 × 81 = 567,
90/7 = 90 × 81/7 × 81 = 7290/567
Likewise, for the 2nd fraction, since 81 × 7 = 567,
8/81 = 8 × 7/81 × 7 = 56/567
Add the two like fractions:
7290/567 + 56/567 = 7290 + 56/567 = 7346/567
So, 90/7 + 8/81 = 7346/567
In mixed form: 12542/567

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