1) 6 1/4 - 4 1/8 = 25/4 - 33/8 = 50/8 - 33/8 = 17/8 = 2 1/82)2 1/8 * 4 = 17/8 * 4 = 17/2 = 8 1/23)3 1/3 : 2 1/2 = 10/3 : 5/2 = 10/3 * 2/5 = 20/15 = 4/3 = 1 1/34)8 1/2 + 1 1/3 = 17/2 + 4/3 = 51/6 + 8/6 = 59/6 = 9 5/6ответ 9 5/6
2)( 2 4/9 + 1 1/6) * 1 4/5 -3 1/9:2 1/3=5 1\6
2 4\9+1 1\6=2 8\18+1 3\18=3 11\18
3 11\18*1 4\5=65\18*9\5=13\2=6 1\2
3 1\9:2 1\3=28\9*3\7=4\3=1 1\3
6 1\2-1 1\3=6 3\6-1 2\6=5 1\6