Question

Cálcule na forma fracionara :a)0,7+1/2 b)0,3+(1/2) c)0,5+1/2+1/5

Answer 1

a)0,7+1/2 =
   7/10 + 1/2 = mmc 10
   1.7/10 + 5.1/10 =
   7 + 5/10 =
   12/10 =
    6/5


b)0,3+(1/2) =
   3/10 + 1/2 = mmc 10
   1.3/10 + 5.1/10 =
   3 + 5/10 =
   8/10 =
   4/5

  
c)0,5+1/2+1/5 =
   1/2 + 1/2 + 1/5 = mmc 10
   5.1/10 + 5.1/10 + 2.1/10 =
   5 + 5 + 2 / 10 =
   12/10 =
   6/5

Answer 2

a) 0,7 + 1/2

Lembre-se: 0,7 = 7/10

7/10 + 1/2

M.M.C = 10

7/10 + 1/2
(7 + 5)/10
12/10 (simplifique por 2)
6/5

b) 0,3 + 1/3

Lembre-se: 0,3 = 3/10

3/10 + 1/2

M.M.C = 10

3/10 + 1/2
(3 + 5)/10
8/10 (simplifique por 2)
4/5

c) 0,5 + 1/2 + 1/5

Lembre-se: 0,5 = 5/10 = 1/2

1/2 + 1/2 + 1/5

M.M.C = 10

1/2 + 1/2 + 1/5
(5 + 5 + 2)/10
12/10 (simplifique por 2)
6/5

Espero ter ajudado, bons estudos!