Question

Помогите, пожалуйста, решить уравнение:

4х/ 2.8 = 2 5/12 /1  5/24
   
                                  

Answer 1

4х : 2,8 = $\frac{29}{12} : \frac{29}{24}$

4х : 2,8 = $\frac{29}{12}* \frac{24}{29}$

4х : 2,8 = 2
4х = 2,8 * 2
4х = 5,6
х = 5,6 : 4
х = 1,4

Answer 2

$\frac{4x}{2.8} = \frac{2 \frac{5}{12} }{1 \frac{5}{24} } \\ \\ 4x= \frac{2.8*2 \frac{5}{12} }{1 \frac{5}{24} } =2.8*2 \frac{5}{12} :1 \frac{5}{24} = \frac{28}{10}* \frac{29}{12} : \frac{29}{24} = \frac{28}{10} * \frac{29}{12} * \frac{24}{29} = \\ \\ = \frac{28*29*24}{10*12*29} = \frac{28*24}{10*12} = \frac{28*2}{10} = \frac{28}{5} =5.6 \\ \\ 4x=5.6\\ \\ x=5.6:4 \\ \\ x=1.4$