Question

(5/8+4/9)*2=
9/1+19=
5/1=5/6=

Answer 1

Пошаговое объяснение:

$( \frac{5}{8} + \frac{4}{9} ) \times 2 =$

Приводим к общему знаменателю...(72)

$= (\frac{45 + 32}{72} ) \times 2 = \frac{77}{72} \times 2 = \frac{77}{36} = 2 \frac{5}{36}$

$\frac{9}{1} + 19 =$

когда, у нас знаменатель = 1,дробь записываем,как целое число...

$= 9 + 19 = 28$

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вариант примера, написанный в комм-х

9/1+1/9=9- 1/9=8_8/9

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$\frac{5}{1} - \frac{5}{6} = 5 - \frac{5}{6} = 4 \frac{1}{6}$

Answer 2

$\\ ( \frac{5}{8} + \frac{4}{9} ) \times 2 =( \frac{5 \times 9}{72} + \frac{4 \times 8}{72} ) \times 2 = ( \frac{45}{72} + \frac{32}{72} ) \times 2 = \frac{77}{72} \times 2 = \frac{77}{36} = 2 \frac{5}{36}$

$\frac{9}{1} + 19 = 9 + 19 = 28 \\ \\ \frac{5}{1} + \frac{5}{6} = 5 + \frac{5}{6} = \frac{30 + 5}{6} = \frac{35}{6} = 5 \frac{5}{5} \\ \\ \frac{5}{1} - \frac{5}{6} = 5 - \frac{5}{6} = \frac{30 - 5}{6} = \frac{25}{6} = 4 \frac{1}{6} \\ \\ \frac{5}{1} \times \frac{5}{6} = \frac{5 \times 5}{1 \times 6} = \frac{25}{6} = 4 \frac{1}{6} \\ \\ \frac{5}{1} \div \frac{5}{6} = \frac{5}{1} \times \frac{6}{5} = \frac{1}{1} \times \frac{6}{1} = \frac{6}{1} = 6$

Глюк - где буквы " p "