11/2 × 40% + 0,3 : 1/9

11/2 × 40% + 0,3 : 1/9

= 11/2 × 40/100 + 3/10 : 1/9
= 440/200 + 3/10 : 1/9
= 440/200 + 24/10
= 440/200 + 480/200 = 920/200 = 23/5

maaf kalo ada yg salah
semoga membantu