Question

0,454545 em forma de fração

Answer 1

$\left \{ {{0,454545...=x} \atop {45,4545...=100x}} \right. \\ \left \{ {{0,454545...=x .(-1)} \atop {45,4545...=100x}} \right. \\ Somando: 99x=45 \\ x=45/99$