Add 27/7 and 18/81, Solve 3 6/7 + 18/81 as a fraction

Add 27/7 and 18/81

1^st number: 3 6/7, 2^nd number: 18/81

27/7 + 18/81 is 257/63.

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,
27/7 = 27 × 81/7 × 81 = 2187/567
Likewise, for the 2nd fraction, since 81 × 7 = 567,
18/81 = 18 × 7/81 × 7 = 126/567
Add the two like fractions:
2187/567 + 126/567 = 2187 + 126/567 = 2313/567
2313/567 simplified gives 257/63
So, 27/7 + 18/81 = 257/63
In mixed form: 45/63

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