Question

Calcule: 2/3 - 3/5 + 5/7:​

Answer 1

Resposta:

82/105

Explicação passo a passo:

2/3 - 3/5 + 5/7

MMC de 3 5 e 7

3 5 7 / 3

1  5 7 / 5

1  1  7 / 7

1  1   1

MMC = 105

105/3 = 35

35.2 = 70

105/5 = 21

21.3 = 63

105/7 = 15

15.5 = 75

70/105 - 63/105 + 75/105 =

82/105