Resolva as expressões(com as contas)
a)1/3 -1/4 x 1/5
b)1/3 dividido 1/6 - 1/4
C) (1/3 + 1/5 - 2) x (1/8 + 1
a)1/3 -1/4 x 1/5
b)1/3 dividido 1/6 - 1/4
C) (1/3 + 1/5 - 2) x (1/8 + 1
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a)1 - 1 x 1 = 1 - 1 = 20-3 ==> 17
3 4 5 3 20 60 60
b) 1 : 1 - 1 = 1 . 6 - 1 = 6 - 1 = 24 - 3 = 21 ou 7
3 6 4 3 1 4 3 4 12 12 4
C) (1 + 1 - 2) x (1 + 1) = (5+3-30) x (1+8) = (-22)x(9) = - 198 ou - 33
3 5 8 15 8 15 8 120 20