Question

решите пожалуйста номер 1300

Answer 1

1.

$5 - \frac{3}{4 + \frac{1}{2} } =$

$5 - \frac{3}{4 \frac{1}{2} } =$

$5 - \frac{2}{3} = 4 \frac{1}{3}$

Ответ :

$4 \frac{1}{3}$

2.

$3 + \frac{4}{1 - \frac{1}{3} } =$

$3 + \frac{4}{ \frac{2}{3} } =$

$3 + 6 = 9$

Ответ :

$9$

3.

$6 - \frac{5}{3 - \frac{1}{2} } =$

$6 - \frac{5}{2 \frac{1}{2} } =$

$6 - 2 = 4$

Ответ :

$4$

4.

$\frac{2}{5} + \frac{4}{6 + \frac{2}{3} } =$

$\frac{2}{5} + \frac{4}{6 \frac{2}{3} } =$

$\frac{2}{5} + \frac{3}{5} = 1$

Ответ :

$1$

Answer 2

1.)

$5 - \frac{3}{4 + \frac{1}{2} } = > \\ \frac{8}{2} + \frac{1}{2} = \frac{9}{2} = > 5 - 3 \div \frac{9}{2} = \\ 5 - 3 \times \frac{2}{9} = \frac{45}{9} - \frac{5}{9} = \frac{40}{9}$

2.)

$3 + \frac{4}{1 - \frac{1}{3} } = > \\ \frac{3}{3} - \frac{1}{3} = \frac{2}{3} = > \\ 3 + 4 \div \frac{2}{3} = 3 + 4 \times \frac{3}{2} = \frac{6}{2} + \frac{12}{2} = \frac{18}{2} = 9$

3.)

$6 - \frac{5}{3 - \frac{1}{2} } = > \\ \frac{6}{2} - \frac{1}{2 } = > \\ 6 - 5 \times \frac{2}{5} = \frac{30}{5} - \frac{10}{5} = \frac{20}{5} = 4$

4.)

$\frac{2}{5} + \frac{4}{6 + \frac{2}{3} } = > \\ \frac{18}{3} + \frac{2}{3} = \frac{20}{3} = > \\ \frac{2}{5} + 4 \times \frac{3}{20} = \frac{2}{5} + \frac{3}{5} = 1$

Тада!