а) 3/4 2/9 = 6/36 = 1/6б) 12/13 13/15 = 156/195 = 52/65в) 8/21 7/10 = 56/210 = 4/15г) 7/5 15/14 = 105/70 = 3/2д) 8/15 25/28 = 200/420 = 10/21е) 2/15 5/22 = 10/330 = 1/33ж) 9 5/6 = 45/6 = 15/2з) 1/2 4 = 4/2 = 2и) 4 * 5/9 = 20/9
а) 3/4 2/9 = 6/36 = 1/6
б) 12/13 13/15 = 156/195 = 52/65
в) 8/21 7/10 = 56/210 = 4/15
г) 7/5 15/14 = 105/70 = 3/2
д) 8/15 25/28 = 200/420 = 10/21
е) 2/15 5/22 = 10/330 = 1/33
ж) 9 5/6 = 45/6 = 15/2
з) 1/2 4 = 4/2 = 2
и) 4 * 5/9 = 20/9