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2. Oblicz ( skracając , jeśli to możliwe ) :

a ) 5 x 7/10 =
b ) 18 x 5 i 2/3 =
c ) 8/21 x 7/12 =
d ) 2 i 1/3 x 1 i 2/7 =
e ) 4 i 1/6 : 15 =
f ) 8/14 : 4/7 =
g ) 12 : 6/11 =
h ) 4 i 2/7 : 3 i 1/8 =

Proszę o rozwiązanie tych działań. Daję naj .


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