Question

1 2/3 : 3 1/3=...
3 5/7 : 1 7/9=...
2 1/2 : 1 1/4=...

Answer 1

1 2/3 : 3 1/3 = 5/3 : 10/3 = 5/3 · 3/10 = 5/10 = 1/2

3 5/7 : 1 7/9 = 26/7 : 16/9 = 26/7 · 9/16 = (13·9)/(7·8) = 117/56 = 2 5/56

2 1/2 : 1 1/4 = 5/2 : 5/4 = 5/2 · 4/5 = 4/2 = 2