а) 4/9+2/3 = 4/9 + 6/9= 10/9 = 1 1/9
б) 8/15+7/10 = 16/30+ 21/30= 37/30= 1 7/30
в) 51/7+2 4/5 = 255/35+ 98/35= 353/35= 10 3/35
г) 9 5/14+5 6/7= 41/14+ 41/7= 41/14+ 82/14= 123/14=8 11/14
а) 4/9+2/3 = 4/9 + 6/9= 10/9 = 1 1/9
б) 8/15+7/10 = 16/30+ 21/30= 37/30= 1 7/30
в) 51/7+2 4/5 = 255/35+ 98/35= 353/35= 10 3/35
г) 9 5/14+5 6/7= 41/14+ 41/7= 41/14+ 82/14= 123/14=8 11/14