Question

Daca a supra b este egal cu 1 supra 5,calculati a+b supra 5a+b
Va rogg...E URGENT DAU CORONITA

Answer 1

a/b = 1/5 => b = 5a
(a+b)/(5a + b) = (a + 5a)/ (5a + 5a) = 6a / 10 a = 6/10 = 3/5

Answer 2

$\frac{a}{b} = \frac{1}{5} =\ \textgreater \ 5a=b \\ \\ \frac{a+b}{5a+b} = \frac{a+5a}{5a+5a} = \frac{6a}{10a} = \frac{3a}{5a} = \frac{3}{5}$