Question

A man owns 10 acres of land . He planted trees in 4/5 of it .In what portion of the entire land has he planted trees ?

Answer 1

On 8acres he has planted trees
just do the below
4/5*10=4*2=8

Answer 2

Four fifth of 10 acres=
4/5*10=8acres
So portion will b 4 is to 5