(2,35+4,65)*5,3:(40-2,9)=?(7,63-5,13)*0,4:(3,17+6,83)=?

Question

(2,35+4,65)*5,3:(40-2,9)=?
(7,63-5,13)*0,4:(3,17+6,83)=?

Answer 1

1)= 7*5,3:37,1=37,1:37,1= 1 2) = 2,5*0,4:10= 1:10= 0,1