bonjour
C : ( 2/3 + 5 /6 ) : ( 2 - 1 /3 )
= ( 4/6 + 5 /6 ) : ( 6/3 - 1 /3 )
= 9/6 : 5 /3
= 9 /6 * 3 /5
= 27/30
= 9 /10
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bonjour
C : ( 2/3 + 5 /6 ) : ( 2 - 1 /3 )
= ( 4/6 + 5 /6 ) : ( 6/3 - 1 /3 )
= 9/6 : 5 /3
= 9 /6 * 3 /5
= 27/30
= 9 /10