№ 969
1/3 * 2/7 = 2/21
¾ * ¼ = 3/16
8/9 * 1/3 = 8/27
4/9 * 2/3 = 8/27
№ 970
4/5 * 5/7 = 20/35 = 4/7
5/6 * 4/7 = 20/42 =
10/21
2/3 * 5/8 = 10/24 = 5/12
7/5 * 4/7 = 4/5
№ 971
¾ * 2/9 = 1/6
8/21 * 7/10 = 4/15
8/15 * 25/28 = 10/21
№ 972
3/8 * ½ = 3/16
3/5 * 1/6 = 3/ 30 = 1/10
3/8 * ¼ = 3/32