Respuestas

2012-06-28T01:16:34+02:00

a. (1/2+1/2)*8/9

(2/2)*8/9

1*8/9

8/9

 

b.8/4(5+6/3(21/7))

2(5+2(3))

2(5+6)

2*11

22

 

c.(25/5*49/7)+(24/8-9/3)*5

(5*7)+(3-3)*5

(35+0)*5

35*5

175

2012-06-28T01:20:28+02:00

El resultados es: ( 3 + 0,5 = 1/4) - ( 2 + 1/6) =

Suerte!

 

3,5 - 2,16 = 1,36

 

Espero que te sirva :D