Oblicz : 3 i 2/3 x 5/8 =
3 i 1/2 x 6/7 =
1 i 1/4 x 1 i 3/5 =
3 i 1/3 x 5 i 2/5 =
1/3 x 3/4 x 2/3 =
1/6 x 1 i 7/8 x 2/5 =
daje janka za 1 odpowiedz
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3 i 2/3 x 5/8 = 12/3 x 5/8= 5/2 = 2 i 1/2
3 i 1/2 x 6/7 = 7/2 x 6/7 =3
1 i 1/4 x 1 i 3/5 =5/4 x 8/5 =2
3 i 1/3 x 5 i 2/5 =10/3 x 27/5= 18
1/3 x 3/4 x 2/3 = 1/6
1/6 x 1 i 7/8 x 2/5 = 1/8