tolong bantuin yah besok dikumpulkan

12. = 9/4 : 1/3 x 12/10
= 9/4 x 3 x 12/10
= 324/40
= 8,1 = A
13. 5/6 + 9/4 - 3/4 = 10/12 + 27/12 - 9/12 = 28/12 = 2 [tex] \frac{1}{3} [/tex] = B
Jadikan terbaik ya, thanks

no.12) 9/4 . 3/1 . 12/10=81/10=8,1 a
. =kali ya
: = jadi kali
1,2=12/10