1/2+0,30-40persen= (desimal)

[tex] \frac{1}{2} =0,5[/tex]
[tex]40 persen= \frac{40}{100} =0,40[/tex]
[tex] \frac{1}{2}+0,30+40 persen = 0,5+0,30+0,40=1,20=1,2[/tex]