Question

Calcule e simplique os resultados quando for possível a) 1/2 - 2/3 b) 5/6 + 2/3 c 4/5 + 2/3 d) 9/2 + 7/4 + 2/3 e) 2/5 +1/10+ 1/2 f) 2/7 + 1/10 + 3/2 ??? E urgente e pra hoje ultima aula

Answer 1

a) 1/2 - 2/3

3 - 4     
------- =  -1/6
  6

b)5/6 + 2/3

5 + 4
--------- = 9/6 = 3/2
    6

c) 4/5 + 2/3

12 + 10
---------- = 22/15
    15

d) 9/2 + 7/4

18 + 7
--------- = 25/4
   4

e) 2/5 +1/10 + 1/2

4 + 1 + 5
------------- = 10/10 = 1
      10

f) 2/7 + 1/10 + 3/2

20 + 7 + 105
----------------- = 132/70 = 66/35
         70