1) 3/10 и 2/5 = 3/10 и 4/102) 5/9 и 7/18 = 10/18 и 7/183)9/14и6/7 = 9/14 и 12/14 4)1/5и7/25 = 5/25 и 7/255)1/2и1/3 = 3/6 и 2/66)2/5и3/7 = 14/35 и 15/357)2/11и1/3 = 6/33 и 11/338)5/8и1/6 =15/24 и 6/249)5/12и3/8 = 10/24 и 9/24 1)1/2,1/6и2/3 = 3/6, 1/6 и 4/6 2)1/4,5/4и9/28 = 7/28, 35/28 и 9/28 3)1/5,11/20и3/10 = 4/20, 11,20 и 6/20 4)3/4,7/8и3/16 = 12/16, 14/16 и 3/16 5)2/3,2/15и4/5 = 10/15, 2/15 и 12/15 6)1/2,1/9и5/6 = 9/18, 2/18 и 15/18