პერიოდული ათწილადების წილადებად ჩაწერა (მიმოხილვა)

$\large{x = 0{,}7777...}$x, equals, 0, comma, 7777, point, point, point

$\large{\begin{aligned} 10x &= 7{,}7777...\\ x &= 0{,}7777... \end{aligned}}$

$\large{9x = 7}$9, x, equals, 7

$\large{ x = \dfrac{7}{9}}$x, equals, start fraction, 7, divided by, 9, end fraction

$\large{0.\overline{7}=\dfrac79}$0, point, start overline, 7, end overline, equals, start fraction, 7, divided by, 9, end fraction