(5-14/15):(11/15+0,3)

1)5-14/15 = 4 1/15 = 61/15

2)11/15 + 0,3 = 11/15 + 3/10 = 22/30+9/30 = 31/30

3)61/15:31/30 = 61/15*30/31 = 61*2/31 = 122/31 = 3 29/31