Question

Resolvam essas expressões

Answer 1

Resposta:

                         1

Explicação passo-a-passo:

 13/3 - (3/4 + 4/5+ 2/3 + 5/6) - (1/3 + 1/4) + 4/5 - 3/6 =

 Resolvendo por partes:

   3/4 + 4/5+ 2/3 + 5/6 = ¨¨¨¨mmc(3,4,5,6) = 60

   45/60 + 48/60 + 40/60 + 50/60 = 183/60

 1/3 + 1/4 = ¨¨¨¨mmc(3,4) = 12

 4/12 + 3/12 = 7/12 <<<<<

4/5 - 3/6 = ¨¨¨¨¨MMC(5,6) = 30

24/30 - 15/30 = 9/30 = 3/10 <<<<<<

Então, temos:

13/3 - 183/60 - 7/12 + 3/10 = ¨¨¨¨mmc(3,10,12,60) = 60

260/60 - 183/60 - 35/60 + 18/60 =    60/60  =    1  

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b)    Resolvendo por partes:

    2 + 1/10 = 21/10

   1/(21/10) = 1 : 21/10 = 1 . 10/21 = 10/21

   2 + 10/21 = 52/21

   1/(52/21) = 1 : 52/21 = 1 . 21/52 =  21/52  <<<<<<<

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c)   1 - 1/2  = 1/2 : 3/4 = 1/2 . 4/3 = 4/6  <<<<<

      1 - 4/5 = 1/5 ---> 1/5 : 1/5 = 1/5 . 5 = 5/5/ = 1  <<<<<<

   Então,temos:

    4/6 + 1 = 10/6 =  5/3