Question

ayuda con esto les doy 15 puntos

Answer 1

8) A + B = (3/5 - 1/2) + (1/6 + 2/3) = (6 - 5)/10 + (3 + 12)/18 = 1/10 + 15/18 = 1/10 + 5/6 = (6 + 50)/60 = 56/60 = 14/15

9) A = 3/5 + 9/7 + 1/3 + 2/3 + 2/5 - 2/7 = 3/3 + 5/5 + 7/7 = 1 + 1 + 1 = 3

10) N = 7/12 + 2/3 + 9/5 + 5/12 - 2/3 + 1/5 = 10/5 + 12/12 = 2 + 1 = 3

11) (1/2 - 1/18)/(5/6 + 1/9) = (16/36)/(51/54) = (4/9)/(17/18) = (4.18)/(9.17) = 8/17

12) [(1/3 + 1/2)/(1/6 - 1/3)] + 5/2 = [(5/6)/(-3/18)] + 5/2 = [(5/6)/(-1/6)] + 5/2 = -5/1 + 5/2 = -5/2