сократите дробь

помогите пожалуйста

 

 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 4 = --------                                                                                            6 ================================================================   помогла?поблагодарите!дайте най, и к Вам вернется 25% пкт.,потраченных на ето задание