Сократите дробь 7*3/3*14 10*9/30*9 10*11*9/12*10*11 12*14*16/14*16*18 4*12/5*9 14*15/21*20 5*9/6*7*30 3*4*25/24*15

 7*3          7          1 = =     <-  дроби сократились
3*14       14         2   сперва 3 на 3, затем 7 на 7 и 14 на 7   10*9          10          1 = =      <-  дроби сократились 30*9          30         3   сперва 9 на 9, затем 10 на 10 и 30 на 10   10*11*9                                                                         9                                                       3   = сокращаем 10 на 10 и 11 на 11 =   сократим еще на 3   = 12*10*11                                                                      12                                                    4       12*14*16                                                     12
= сокращаем 14 и 14, а также 16 и 16 = делим( или сокращаем) на 6
14*16*18                                                                   18
       2
=
       3
    4*12                                                                                              4*4 = сокращаем: 12 делим на 3 и 9 делим на 3 = перемножаем 5*9                                                                                                 5*3   16             1 = 1 15            15       14*15                                                                                                 14*3 = сокращаем: 15 делим на 5 и 20 делим на 5 = =
21*20                                                                                                 21*4                                                                                             14*1 =сокращаем: 3 делим на 3 и 21 делим на 3 = =                                                                                              7*4                                                                                              2               1 = сокращаем: 14 делим на 7 и 7 делим на 7 = =
                                                                                             4               2         5*9 = сокращаем: 5 делим на 5 и 30 делим на 5 а также 6 на 3 и 9 на 3 6*7*30             1*3                                                                                                 1*1 = = сокращаем: 3 делим на 3 и 6 делим на 3 =   перемножаем        2*7*6                                                                                               2*7*2           1 =         28        3*4*25                                                                                                4*25   = сокращаем: 3 делим на 3 и 15 делим на 3 = =  24*15                                                                                                 24*5                                                                                               4*5 =сокращаем: 25 делим на 5 и 5 делим на 5 = =                                                                                                24                                                                                            5 =сокращаем: 4 делим на 4 и 24 делим на
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