Oblicz.
b) ( 4 1/2x 1 2/3- 3 1/4) : (1- 10/27: 5/6)=

c) 4- 2 2/5x 5/8
---------------------- =
4/5x 3/4+ 1 9/10


d) 3/5x 3 1/2- 1/2x 1/5
------------------------------- =
1/8x 6 2/5


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