5 per 12 diambil 2 per 15 caranya

5/12 - 2/15
= 25/60 - 8/60
= 17/60

[tex] \frac{5}{12} - \frac{2}{15 } \\ = \frac{25 - 8}{60} \\ = \frac{17}{60} [/tex]
Semoga terbantu