Question

пж помогите 1 пример пжж ​

Answer 1

Ответ:

$\frac{51}{8} \times \frac{24}{17} = 9 \\ \frac{19}{8} \div \frac{5}{4} = \frac{19}{8} \times \frac{4}{5} = \frac{19}{10 } \\ 9 - \frac{19}{10} + \frac{2}{5} = \frac{90 - 19 + 4}{10} = \frac{75}{10} = 7.5$

Answer 2

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1) 2 3/8 : 1 1/4 = 19/8: 5/4 = 19/10 = 1,9
2) 6 3/8 • 1 7/17 = 9
3) 9- 1,9 = 7,1
4)7,1 + 2/5 = 7,1 + 0,4 = 7,5
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