Question

помогите с примером,это срочно

Answer 1

9/4*8/5=72/20-36/10*(6/10+9/10)=72/20-36/10*15/10=72/20-27/5=-9/4=-1,8

Answer 2

1.8

Answer 3

2,4-3,6*1,5=2,4-5,4=-3
Ответ:-3