Question

По .
пример на фото.
решение по действиям! ​

Answer 1

$\frac{142}{7263}$

Пошаговое объяснение:

1. 2.7 * 4 = 27/10 * 4 = 108/10 = 10.8

2. $12\frac{21}{30}$ / $10\frac{8}{10}$ = 381/30 * 10/108 = 381/324 = 127/108

3. $\frac{127}{108} + \frac{41}{10} = \frac{635+2214}{540} = \frac{2849}{540}$

4. 2849/540 * 4/5 = 11396/2700 = 5698/1350 = 2849/675

5. $\frac{2849}{675} - \frac{19}{5} = \frac{2849 - 2565}{675} = \frac{284}{675}$

6. 11 * 1/10 = 11 * 0.1 = 1.1

7. 28 - 1.1 = 26.9

8. $\frac{269}{10} * \frac{4}{5} = \frac{538}{25}$

9. $\frac{284}{675} : \frac{538}{25} = \frac{284}{675} *\frac{25}{538} = \frac{142}{7263}$