(3,5 : 4 2/3 + 4 2/3 : 3,5)*4,8 = ?

Question

(3,5 : 4 2/3 + 4 2/3 : 3,5)*4,8 = ?

Answer 1

4 2/3 = 14/3
3,5 = 35/10 = 7/2
4,8 = 48/10=24/5
(7/2 : 14/3 + 14/3 : 7/2) 24/5 =
= (3/4 + 4/3) • 24/5 =
= (9/12 + 16/12) • 24/5 =
= 25/12 • 24/5 = 5•2 = 10