Question

calcule o valor de:

a) 2/3 de 120 =

b) 5/6 + 1/8 - ( 2/9 + 1/5 ) =

c) [(2/5 + 1/3): ( 1/5)]: (3/4) =​

Answer 1

Resposta:Segue as respostas abaixo na explicação

Explicação passo a passo:

a)120.2/3

  40.2

   80

b) 5/6 + 1/8 - ( 2/9 + 1/5 ) =

   20/24+3/24-(10/45+9/45)

   23/24-19/45

   345/360-152/360

   193/360

c) [(2/5 + 1/3): ( 1/5)]: (3/4) =​

   [(6/15+5/15):(1/5)]:(3/4)

   [11/15:1/5]:(3/4)

   [11/15.5/1]:(3/4)

   [55/15]:3/4

   55/15.4/3

   220/60:20/20

   11/3