14-13,2:(3 11/21-2 4/15)

Question

14-13,2:(3 11/21-2 4/15)

Answer 1

14 - 13,2 : (3 11/21 - 2 4/15)= 3,5

1) 3 11/21-2 4/15= 3 55/105-2 28/105= 1 9/35
2) 13,2:1 9/35= 66/5*35/44= 42/4= 10 2/4= 10,5
3) 14-10,5= 3,5