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