Add 81/7 and 30/27, Solve 11 4/7 + 1 3/27 as a fraction

Add 81/7 and 30/27

1^st number: 11 4/7, 2^nd number: 1 3/27

81/7 + 30/27 is 799/63.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 7 × 27 = 189,
81/7 = 81 × 27/7 × 27 = 2187/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
30/27 = 30 × 7/27 × 7 = 210/189
Add the two like fractions:
2187/189 + 210/189 = 2187 + 210/189 = 2397/189
2397/189 simplified gives 799/63
So, 81/7 + 30/27 = 799/63
In mixed form: 1243/63

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