решите мне примеры очень срочно! даю целых 35 пунктов!!

6 ц. 7/9 + 5/9 - (453 - 45)/900               24            61/9 + 5/9 - 34/75          24

                                                      *               =                                     *         

7/9 + (546 - 54)/900 + 1/50                    43          7/9 + 41/75 + 1/50           43

172/25       24        3096       24      1728

              *         =             *         =           

121/90       43         605        43      605

=