Помогите решить пример!Пожалуйста!

(5 4/45 - 4 1/6) = 229/45 - 25/6 = 458/90 - 375/90 = 83/90
(4 2/3 + 0,75) = 4 +2/3 + 1/4 = 4 + 8/12 + 3/12 = 4 +11/12 = 4 11/12
83/90 / 5 8/15 = 83/90 / 83/15  = 1/6
4 11/12  * 3 9/13 = 59/12  *  48/13 =236/13
1/6 / 236/13 = 13/1416
13/1416 * 34 2/7 = 13/1416 * 240/7 = 130/413
(0,3 /0,01)  /70 = 30/70 = 3/7
130/413 + 3/7 + 2/7 = 130/413 + 5/7 = 130/413 + 295/413 = 425/413 = 1 12/413