1) 15/16 * 4/5 = 3/4
2) 25 : 5/6 = 30
3) 18/35 : 6/7 = 3/5
4) 3/5 * 7/12 = 7/20
5) 5 5/6 : 3 8/9 = 35/6 : 35/9 = 35/6 * 9/35 = 9/6 = 3/2 = 1целая1/2
1) 15/16 * 4/5 = 3/4
2) 25 : 5/6 = 30
3) 18/35 : 6/7 = 3/5
4) 3/5 * 7/12 = 7/20
5) 5 5/6 : 3 8/9 = 35/6 : 35/9 = 35/6 * 9/35 = 9/6 = 3/2 = 1целая1/2