#1) 8/10 +1/3 = 34/30= 1 (4/30)

Is my answer OK

#2) 2/5 ÷1/3= 6/5 = 1 (1/5)

Is my answer OK

#3) 2/5 ÷ 1/3 =6/5= 1 (1/5)
Is my answer correct

#1 ok

#2 ok
so, #3 must be ok too, since it is the same as #2!