Question

Encontre o resultado das operações a seguir:a) -5/8 + 3/8b) 2/7 + 3/7c) -3/7 - 5/12d) 3/2 -5/8e) (-2/7) . (+3/2)f) (+6/12) : (-3/8)g) (-2/7)² =h) (-5/12) : (-3/4)

Answer 1

a) -5/8 + 3/8 = -2/8 = -1/4

b) 2/7 + 3/7 = 5/7

c) -3/7 - 5/12 = -36/84 - 35/84 = -71/84

d) 3/2 -5/8 = 12/8 - 5/8 = 7/8

e) (-2/7) . (+3/2) = -6/14

f) (+6/12) : (-3/8) = 6/12 . 8/3 = 48 / 36 = 4/3

g) (-2/7)² = 4/49

h) (-5/12) : (-3/4) = -5/12 . 4/-3 = 5/9