Question

Пошаулуста даю 15 балов

Answer 1

3 1/5=16/5;0.5=1/2; 3 1/2=7/2;

(1/2)*16/5+(7/2)*(2-1 1/7)=8/5+(7/2)*(6/7)=1.6+3=4.6

4.6=4 3/5