1 banding 20 dijadikan persen

1 : 20
[tex] \\ = \frac{1}{20} 100 \\\\ = \frac{100}{20} \\\\[/tex]

= 5%

aq jawab ya..
5%=5/100
caranya:
1/20% = 1/20*100
= 100:20*1
=5%