a razão (1-2/3) : (2-1/6)equivale a :
a)2/11
b)2/13
c)10/13
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(1-2/3)= (3-2/3)=1/3
(2-1/6)= (12-1/6)= 11/6
1/3:11/6=
1/3×6/11= 6/33= 2/11
(2-1/6)= (12-1/6)= 11/6
1/3:11/6=
1/3×6/11= 6/33= 2/11
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