va rog frumos ajutatima!

a) 1/2 /3 = 1/6
1/2 • 1/3 = 1/6
1/6 = 1/6
b) 2/3 / 2/5 = 10/15 / 6/15 = 10/6
2/9 / 1/3 = 2/9 / 3/9 = 2/3 = 4/6
10/6 > 4/6
c) 5/7 / 5 = 1/7
1/5 / 7/15 = 3/15 / 7/15 = 3/7
1/7 < 3/7
d) 5/8 / 1/8 = 5/1 = 5
2/9 • 45 = 45•2/9 = 90/9 = 10
5 < 10