Question

11/18-1/9=как решить подроб

Answer 1

$\frac{11}{18} - \frac{1}{9} = \frac{1 \times 11 - 2 \times 1}{18} = \frac{11 - 2}{18} =$

$\frac{9}{18} = \frac{1}{2}$

Answer 2

$\frac{11}{18 } - \frac{1}{9} = \frac{11}{18} \times \frac{1 \times 2}{9 \times 2} = \frac{11}{18} - \frac{2}{18} = \frac{9}{18} = \frac{3}{6}$
Всё.