Question

20 2/3+(3-2/11)/5 1/6-7,5

Answer 1

Решаю по действиям:
1)3-2/11=33-2/11=31/11
2)20 2/3+31/11=62/3+31/11=775/33=23 16/33
3)5 1/6-7,5=31/6-75/10=155-225/30=-70/30=-2 1/3
4)23 16/33:(-2 1/3)=775/33*3/7=775/77=10 5/77