Помогите пожалуйста задание2,4,6 дою 10баллов

Question 1

Question 2

$2) \: \frac{4}{5} \times 2 \: \frac{1}{2} \div 6 = \frac{4}{5} \times \frac{5}{2} \div 6 = \frac{1}{3}$
$1) \: \frac{4}{5} \times \frac{5}{2} = \frac{4 \times 5}{5 \times 2} = \frac{2 \times 1}{1 \times 1} = \frac{2}{1} = 2$
$2) \: 2 \div 6 = \frac{2}{6} = \: \frac{2}{1} \div \frac{6}{1} = \frac{2}{1} \times \frac{1}{6} = \frac{2 \times 1}{1 \times 6} = \frac{1 \times 1}{1 \times 3} = \frac{1}{3} .$

Ответ:
$\frac{1}{3}$

$4) \: \: 26 \div 3 \: \frac{1}{4} \times \frac{1}{16 } = 26 \div \frac{13}{4} \times \: \frac{1}{ 16 } = 1 \: \frac{1}{3}$

$1) 26 \div \frac{13}{4} = 26 \times \frac{4}{13} = \frac{26 \times 4}{1 \times 13} = \frac{2 \times 4}{1 \times 1} = \frac{8}{1} = 8$

$2) \: 8 \times \frac{1}{6} = \frac{8 \times 1}{1 \times 6} = \frac{8 \div 2 \times 1}{1 \times 6 \div 2} = \frac{4 \times 1}{1 \times 3} = \frac{4}{3} = 1 \: \frac{1}{3}$

Ответ:

$1 \: \frac{1}{ 3}$

$6) \: 1 \: \frac{1}{7} \times \frac{3}{4} \div \frac{3}{10} = \frac{8}{7} \times \frac{3}{4} \div \frac{3}{10} = 2 \: \frac{6}{7}$

$1) \: \frac{8}{7} \times \frac{3}{4} = \frac{8 \times 3}{7 \times 4} = \frac{8 \div 4 \times 3}{7 \times 4 \div 4} = \frac{2 \times 3}{7 \times 1} = \frac{6}{7}$

$2) \: \frac{6}{7} \div \frac{3}{10} = \frac{6}{7} \times \frac{10}{3} = \frac{6 \times10 }{7 \times 3} = \frac{6 \div 3 \times 10}{7 \times 1} = \frac{2 \times 10}{7 \times 1} = \frac{20}{7} = 2 \: \frac{6}{7}$
Ответ:
$2 \: \frac{6}{7}$

Question 3

помогла