Question

Выполните сложение 1/3-1/9

Answer 1

$\frac{1}{3} - \frac{1}{9} = \frac{1 \times 3}{3 \times 3} - \frac{1}{9} = \frac{3}{9} - \frac{1}{9} = \frac{2}{9}$
17/18-1/9=17/18-2/18=15/18=
=5/6