Wie schreibt man 30% als Bruch?

Per cent means #color(blue)"out of one hundred"#

#rArr30%=30/100#

which may be simplified by cancelling by 10.

#30/100=cancel(30)^3/cancel(100)^10=3/10" as a proper fraction"#

and #3/10=3÷10=0.3" as a decimal fraction"#