1 1/2 + 40persen - 0,3 × 1/9

11/2 + 40/100 - 3/10 x 1/9
= ( 11/2 + 40/100 ) - ( 3/10 x 1/9 )
= ( 550/100 + 40/100 - ( 1/20 )
= ( 590/100 ) - ( 1/20 )
= 590/100 - 5/100
= 585/100
= 585 % atau 5.85