ema , mam takie zadanko :)
OBlicz A) (1/2x1/2):9/8=
B) (9/5x20/3):4/25=
C) (2/3x4/9):1/6=
E) (1/2x1/3):1/6=
F) (2/3x5/6:8/15=
ps. te / oznacza kreske ułamkowa :)
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B) (9/5x20/3):4/25=12:4/25=3/1x25/1=75
C) (2/3x4/9):1/6=8/27x6/1=48/27=1 i 21/27
E) (1/2x1/3):1/6=1/6:1/6=1
F) (2/3x5/6:8/15=5/9x15/8=75/72=1 i 3/72