Question

Cuanto debo sumarle a 1/2, 1/3, 1/4 para obtner un promedio igual a 3/8

Answer 1

(1/2 + 1/3 + 1/4 + x)/4 = 3/8

13/12 + x = (3.4)/8

x = 12/8 - 13/12

x = 5/12

le debemos sumar 5/12