hasil dari 0,5x0,3+70% =

0,5×0,3+70%=5/10×3/10+70/100
=15/100+70/100=85/100=17/20

[tex] \frac{5}{10} \times \frac{3}{10} = \frac{3}{20} + \frac{70}{100} = \frac{3}{20} + \frac{7}{10} = 0.85[/tex]