3 1/8÷2 1/2=2 2/3÷x решите уравнение

Question

3 1/8÷2 1/2=2 2/3÷x решите уравнение

Answer 1

3 1/8:2 1/2=2 2/3:x

х=2 1/2*2 2/3    
       3  1/8               =5/2*8/2

                                    25/8  =  10/  25/8   =10*8/25 =16/5=3  1/3