Is this a correct answer?

Is this a correct answer?

1. Yes, the student correctly added.
2. No, you cannot add unlike denominators
3. No, 5 + 7 is not 12
4. No, 2 + 3 is not 5
5. Semua jawaban benar

Jawaban: B. No, you cannot add unlike denominators.

Dilansir dari ensiklopedia, is this a correct answer no, you cannot add unlike denominators.