Question

Sendo a = 2/3, b = - 1/2 e c = 0,25. Calcule : 1 = (a+b-c)

Answer 1

1 = (a + b - c)
1 = ⅔ + (- ½) - ¼
1 = ⅔ - ½ - ¼
1 = ⅔ - ¾
1 = (8 - 9)/12
1 = - 1/12