10:5/6=10/1:5/6=10/1*6/5=2/1*6/1=12/1=12
12:15/16= 12/1*16/15=4/1*16/5=64/5=
12целых 4/5
3/4:2=3/4*1/2=3/8
1:7/8=8/8*8/7=8/7=1целая1/7
7целых3/5:19/25=38/5:19/25=38/5*25/19=2/1*5/1=10
1ц7/8:2ц11/32=15/8:75/32=
15/8*32/75=1/1*4/5=4/5
5ц1/3:1ц1/35=16/3:36/35=
16/3*35/36=8/3*35/18=
260/54