20/1 ÷{( 2/5 - 4/3) *5/2+4/1} = ?

Question

20/1 ÷{( 2/5 - 4/3) *5/2+4/1} = ?

Answer 1

20/1 /(-14/15)*5/2+4
-20/1*15/14*5/2+4
-10/1*15/14*5+4
-5/1*15/7*5+4
-375/7+4
-347/7