Question

$daca \frac{a}{b} = 0.1(6) \: atunci \: \frac{2a + 3b}{a + 2b} = ....$
punctul de la 0.1(6) este virgula

Answer 1

a/b=0,1(6)⇔a/b=(16-1)/90⇔a/b=1/6⇒b=6a

Il inlocuim pe b in raport: (2a+3*6a)/(a+2*6a)=20a/13a=20/13

Answer 2

a/b=1/6

b=6a

(2a+3*6a)/(a+2*6a)=20a/13a=20/13