Найдите значение выражения ((7\9 : 47\72): 1,25

((7\9 : 47\72): 1,25 =224/235

 7          47             7            72

---   :    =    *    =  сокращаем 72:9=8  и  9:9=1

 9          72             9            47

         7                8                56

=    *    =

        1                 47              47

                  125

1,25 = 

                  100

  56           125           56              100           5600

  : =   *  =    =
47            100           47              125           5875

                                            224

сокращаем на 25  = 

                                            235

 (7\9 : 47\72): 1,25=(7/9*72/49):1,25=8/7:1 целую 25/100=   8/7  : 125/100 = 8/7*100/125 = 200/31,25=6,4