Tolong dijawab ya.. Besok mau dikumpul !! 6 per 15 - 9 per 20

6/15 - 9/20 = 24/60 - 27/60
= - 3/60 ( maaf kalo salah)

[tex] \frac{6}{15} - \frac{9}{20} = \frac{24 - 27}{60} = \frac{-3}{60} = \frac{-1}{20} [/tex]