Question

9/2 : 27/4 - (17/21 . 49/34 - 5/6 ) =
com respostas e contas

Answer 1

9/2 / 27/4 -  (17/21 * 49/34 -5/6) = 9/2 * 4/27 - (17*49/21*34  -5/6)
36/54 -  (833/714 -5/6) = 2/3 - (49/42 - 5/6) = 2/3 - ((49-35))/42
= 2/3 - (14/42) = 2/3 - 14/42 = (28 -14)/42 = 14/42 = 1/3. 
UM ABRAÇO!