hasil dari 75%-15/30-0,2 diubah ke persen

jawabannya 5% 
15/30 = 5/10 = 50%
0,2 = 2/10 = 20%

75% - 50% - 20% = 5%

[tex]75\% - \frac{15}{30} - 0.2 \\ \\ = 75\% - \frac{5}{10} - 20\% \\ \\ = 75\% - 0.5 - 20\% \\ \\ = 75\% - 50\% - 20\% \\ \\ = 5\%[/tex]