Question

(2 3/4 * 4 + 5 1/6 : 1/2 - 10 5/9 ) * 9

Answer 1

2 3/4×4=11/4×4=11
5 1/6÷1/2=31/6×2/1=31/3=10 1/3
11+10 1/3=21 1/3
21 1/3-10 5/9=21 3/9-10 5/9=
=20 12/9-10 5/9=10 7/9
10 7/9×9=97/9×9=97

Answer 2

СПС

Answer 3

Ответ: 19 (двадцать символов)