Add 12/7 and 15/27, Solve 1 5/7 + 15/27 as a fraction

Add 12/7 and 15/27

1^st number: 1 5/7, 2^nd number: 15/27

12/7 + 15/27 is 143/63.

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,
12/7 = 12 × 27/7 × 27 = 324/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
15/27 = 15 × 7/27 × 7 = 105/189
Add the two like fractions:
324/189 + 105/189 = 324 + 105/189 = 429/189
429/189 simplified gives 143/63
So, 12/7 + 15/27 = 143/63
In mixed form: 217/63

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