Add 15/7 and 12/27, Solve 2 1/7 + 12/27 as a fraction

Add 15/7 and 12/27

1^st number: 2 1/7, 2^nd number: 12/27

15/7 + 12/27 is 163/63.

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,
15/7 = 15 × 27/7 × 27 = 405/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
12/27 = 12 × 7/27 × 7 = 84/189
Add the two like fractions:
405/189 + 84/189 = 405 + 84/189 = 489/189
489/189 simplified gives 163/63
So, 15/7 + 12/27 = 163/63
In mixed form: 237/63

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