7 per 12 ditambah 6 per 15

59 per 60

maaf kalau slh

[tex] \frac{7}{2} + \frac{6}{15} \\ \frac{105}{30} + \frac{12}{30} \\ \frac{117}{30} \\ \frac{39}{10} \\ 3 \frac{9}{10} [/tex]