Question

Cunoscand $\frac{a}{b} =0,(27)$ ,sa se determine 1+3b-11a

Answer 1

$\frac{a}{b} =0,(27)= \frac{27}{99}= \frac{3}{11}$
$\frac{a}{b} = \frac{3}{11} =\ \textgreater \ 11a=3b=\ \textgreater \ 11a-3b=0$
$11a-3b=0|(-1)=\ \textgreater \ -11a+3b=0=\ \textgreater \ 3b-11a+1-1=0$
$1+3b-11a=1$