Question

решите пожалуйста
2:⅔
2⅓*6
²/¹³ *5
2⅓-1⅔
¹/6 +³/10

Answer 1

$2 \div \frac{2}{3} = 2 \times \frac{3}{2} = 3 \\ 2 \frac{1}{3} \times 6 = \frac{8}{3} \times 6 = 16$
$\frac{2}{13} \times 5 = \frac{10}{13} \\ 2 \frac{1}{3} - 1 \frac{2}{3} = (2 - 1) + ( \frac{1}{3} - \frac{2}{3} ) = \\ = 1 - \frac{1}{3} = \frac{2}{3} \\ \frac{1}{6} + \frac{3}{10} = \frac{5 + 9}{30} = \frac{14}{30} = \frac{7}{15}$

Answer 2

1) 2:$\frac{2}{3}$=2*$\frac{3}{2}$=6

2) $2\frac{1}{3} *6= \frac{7}{3} *6=14$

3) $\frac{2}{13} *5=\frac{10}{13}$

4) $2\frac{1}{3}-1\frac{2}{3}=\frac{7}{3} -\frac{4}{3}=\frac{3}{3}=1$

5)$\frac{1}{6}+\frac{3}{10}=\frac{10}{60}+\frac{18}{60}=\frac{28}{60}=\frac{14}{30}=\frac{7}{15}$