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Oblicz wartość liczbową wyrażenia.

c)1 2/3:(-2 2/3+3/2)= d)-7 - (-5 2/7)= e)-4,6 + (-1 3/5)=

2.Oblicz
a)5/6 + 3/5= b)23 2/3+5 7/9= c)2 5/12+3/8= d)5 7/18 + 2 5/6= e)4/7 - 1/3= f)6 5/12 - 4 5/6=
g)4 2/7 - 2= h)3 1/3 - 2/5=
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