2,5 : 5 = 0,5 0,5 razy 8 = 4,0
wolny czas ----- x
5/8 * x = 2,5
x = 2,5 : 5/8
x = 2,5 * 8/5
x = 2 i 1/2 * 8/5
x = 5/2 * 8/5
x = 4 godz -------------- odpowiedź
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2,5 : 5 = 0,5 0,5 razy 8 = 4,0
wolny czas ----- x
5/8 * x = 2,5
x = 2,5 : 5/8
x = 2,5 * 8/5
x = 2 i 1/2 * 8/5
x = 5/2 * 8/5
x = 4 godz -------------- odpowiedź