(1/3-1/2):2,5+0,5:1/7-14/15

Question

(1/3-1/2):2,5+0,5:1/7-14/15

Answer 1

1)1/3-1/2=2/6-3/6= -1/6
2) -1/6:2,5= -1/6:2 5/10 = -1/6:2 1/2= -1/6:5/2= -1/6*2/5= - 1/15
3)0,5:1/7=5/10:1/7=1/2:1/7=1/2*7=7/2=3 1/2
4) -1/15+3 1/2= -2/30+105/30=103/30
5)103/30-14/15=103/30-28/30=75/30=5/2=2,5