Question

Determina numarul natural nenul x stiind ca fiecare fractie este un reprezentant al narului rational 5/6 : a)x/12 b)35/x c)x-2/30 e)75/x+4

Answer 1

a) 5/6 = x/12 => 6x = 60 => x=10

b) 5/6 = 35/x => 5x = 210 => x = 42

c) 5/6 = (x-2)/30 => 150 = 6x - 12 => x = 162/6 = 27

e) 5/6 = 75/(x+4) => 5x+20 = 450 => 5x = 430 => x = 430/5 = 86