o valor de 0,333...+ 7/2-(2/3-2)=
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0,333... = 3/9 = 3:3 / 9:3 = 1/3
1/3 + 7/2 - 2/3 + 2/1 =
mmc de 2 e 3 = 6
(6 : 3 x 1) / 6 + (6 : 2 x 7) / 6 - (6 : 3 x 2) / 6 + (6 : 1 x 2) / 6 =
(2 x 1) / 6 + (3 x 7) / 6 - (2 x 2) / 6 + (6 x 2) / 6 =
2 / 6 + 21 / 6 - 4 / 6 + 12 / 6 =
(2 + 21 - 4 + 12) / 6 =
(23 - 4 + 12) / 6 =
(19 - 12) / 6 =
7 / 6
1/3 + 7/2 - 2/3 + 2/1 =
mmc de 2 e 3 = 6
(6 : 3 x 1) / 6 + (6 : 2 x 7) / 6 - (6 : 3 x 2) / 6 + (6 : 1 x 2) / 6 =
(2 x 1) / 6 + (3 x 7) / 6 - (2 x 2) / 6 + (6 x 2) / 6 =
2 / 6 + 21 / 6 - 4 / 6 + 12 / 6 =
(2 + 21 - 4 + 12) / 6 =
(23 - 4 + 12) / 6 =
(19 - 12) / 6 =
7 / 6
milenaberillo:
Mas porque virou 19-12, e não 19+12?
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