5 3/4 : 1 7/16 =
12 5/6 : 4 7/12 =
2 2/5 : 4 1/6 =
10 5/8 : 1/2 =
2 5/14 : 1 4/7 =
3 3/4 : 12 1/2 =

Szybko potrzebne. Daje naj.