September 2018 1 13 Report
Wyznacz niewiadomy wyraz proporcji.

a)5 1/2:a=2 3/4:3
b)16:3 3/5=a:1,2
c)5:a=4 2/3:1 1/6
d) a:0,3=3,6:2 2/5

/ kreska ulamkowa
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