Question

решитее плззз))
срочно нужно(((

Answer 1

1) 1- 1/3 = 2/3 2) 1/2/3 = 3/2 3) 1 + 3/2 = 5/2 4) 1/ 5/2 = 2/5

Answer 2

=1:(1+1:(1-1/3))=1:(1+1:2/3)=1:(1+3/2)=1:5/2=2/5