Решите пример с ! 30 4/5-1 2/5*(1 4/5*(12 7/12-9 19/36)-17/35*1 11/34)=?

(34-7)/5 * (1 4/5*(12 21/36-9 19/36) - 17/35*45/34=27/5 * (1 4/5 *3 2/36) - 9/14=27/5* (9*110)/(5*36) -9/14=29 7/10-9/14=4158/140-90/140=4068/140=29 2/35