ile procent godziny lekcyjnej stanowi 2/9 tej godziny
(((2/9)*45)/45)*100%=
(2/9) * (45/45) * 100% =
(2/9) * 100% = 22,2%
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(((2/9)*45)/45)*100%=
(2/9) * (45/45) * 100% =
(2/9) * 100% = 22,2%