3/4 : 5/8 =3/4*8/5=6/5=1 1/5
3 1/9 : 2 4/15=28/9*15/34=70/51=
1 19/51
0,8 : 4 4/5=4/5*5/24=1/6
2 2/19 * (2 3/8 : 1 1/4)=40/19*19/8*4/5=
4
3/4*8/5=6/5=1 1/5
28/9*15/34=70/51=1 19/51
8/10*5/24=1/6
40/19*19/8*4/11=20/11=1 9/11
