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6/10
2/6
6/10
b)
12/15
12/21
9/15
c)
8/12
8/20
12/16
d)
15/20
10/35
15/55
1/3=0,33
3/5=to samo czyli 0,6
b)
4/5=0,8
4/7~0,57
c)
2/3=0,66
2/5=0,4
3/4=0,75
d)2/7~0,285
3/11=0,27
mam nadzieję, że dobrze:D