5 per 9 diambil 5 per 12 caranya

[tex] \frac{5}{9} - \frac{5}{12} \\ = \frac{20 - 15}{36} \\ = \frac{5}{36} [/tex]
Semoga terbantu

5/9 - 5/12
= 20/36 - 15/36
= 5/36