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2.odp.B
6/5 *2/9 =12/45
zad2
B . pięć siódmych
bo 1,4=14/10=7/5 a odwrotność 7/5 to 5/7
6/5*2/9=12/45=4/15
2.
1,4 = 1 4/10= 1 2/5= 7/5
odwrotność: 5/7
odp. B