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2,27*4=9,08
2,2:1 i 2/5=22/10:7/5=22/10 * 5/7 (skróć 10 i 5 przez 5) =22/14=1 i 8/14=
=1 i 4/7
5 i 1/3:2 i 1/6=16/3:13/6=16/3*6/13=96/13=7 i 5/13
2,6:1 i 2/5=26/10:7/5=26/10*5/7 (skróć 10 i 5 przez 5) =26/14=1 i 12/14=
=1 i 6/7
8:0,25=32