Tlng donk ka dijwb yg nmr 13 sm 15 mau di bw soalnya nich. Pakai caranya ka.

12.75 -(5¾ +8.5) = 12.75 - (23/4 + 85/10)=1275/100 - 285/20= 1275/100 - 1425/100 = -150/100= -3/2= A.1 ½

1 ⅛=9/8 x 100= 9 x 100 : 8 = c. 112.5
Semoga membantu kak