Question

30 4/5-1 2/5×(1 4/5×(12 7/12-9 19/36)-17/35×1 11/34)

Answer 1

1)  12 7/12 - 9 19/36 =3 1/18
2)  1 4/5 * 3 1/18 = 11/2 = 5 1/2
3) 17/35 * 1 11/34 =9/14
4)  5 1/2 -9/14 =11/2-9/14=68/14=4 12/14
5) 1 2/5 * 4 12/14 =68/10=6 8/10
6) 30 4/5 - 6 8/10 = 24 8-8/10 =24 ответ !