zapisz za pomocom ułamka dziesietnego a ile to złotych . 75 gr. 9zł 8 gr . 1602 gr . 132 250 gr b ile to godzin 90min 2 godz 15 min 105 min jedna piata doby
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75 gr. 9zł 8 gr . 1602 gr . 132 250 gr b ile to godzin 90min 2 godz 15 min 105 min jedna piata doby
a)
75gr =75/100= 0,75 zł
9 zl 8 gr = 908/100=9,08 zł
1602gr =1602/100= 16, 02 zł
132520 gr=132520/100= 1325, 20 zł
b) ile to godzin :
90min 90/60 = 9/6 = 3/2 = 1,5 h
2 godz 15 min = 135/60 = 27/12 = 2 1/4 h
105 min = 105/60 = 21/12 = 1 9/12 = 1 3/4 h
1/5 doby = 24/5 = 4 4/5 h