4. tentukan nilai operasi hitung berikut a. 4 5/9 - 1 2/3 + 3 1/6 b. 2 1/2 × ( 5 3/5 + 1 2/7 ) pakai cara yaa !!!

a. 4 5/9 - 1 2/3 + 3 1/6 = 41/9 - 5/3 + 19/6 = 82/18 - 30/18 + 57/18 = 109/ 18 = 6 1/18
b. 2 1/2 x (5 3/5 + 1 2/7) = 5/2 x ( 28/5 + 9/7) = 5/2 x (196/35 + 45/35) = 5/2 x (241/35) = 241/14 = 17 3/14
Semoga membantu!