Question

Помогите (9(99((((9(((9

Answer 1

1) 2-1 23/35=1-23/35=35/35-23/35=12/35

2) 9/25:12/35=9/25*35/12=(9*35)/(25*12)= 35 и 25 сократим на 5; 9 и 12 на 3

=(3*7)/(5*4)=21/20=1 1/20

3) 11/30+1 1/20=1+(22+3)/60=1 25/60=1 5/12

4) 1 5/12-1 1/3=5/12-1/3=5/12-4/12=1/12  -  это ответ.