ж) 1) 6 7/12- 3 17/36 = 6 81/36-3 17/36 = 3 4/36= 3 1/9
2) 3 1/9* 1/2 = 28/9*1/2 = 14/9 = 1 5/9
3) 41/3 : 13/20 = 13/3 * 20/12 = 20/3 = 6 2/3
4) 1 5/9- 6 2/3 = 1 5/9 - 6 6/9= -5 1/9
з) 1) 1 11/24 + 13/36 = 1 33/72 + 26/72 = 1 59/72
2) 1 59/72* 1 11/25= 131/72*36/25 = 131/50 = 2 31/50
3) 8/15*9/16 = 3/10
4) 2 31/50 - 3/10 = 2 31/50 - 15/50 = 2 16/50 = 2 8/25
и) 1) 2 1/2 *48/1 = 5/2*48/1 = 120
2) 3 2/3 : 1/18 = 11/3 * 18/1 = 66
3) 5 5/12: 7/36 = 65/12*36/7 = 195/7 = 27 6/7
4) 120-66 = 54
5) 54+ 276/7 = 81 6/7
к) 1) 6 1/4:1/8= 25/4*8/1 = 50
2) 3 2/3 * 5 1/2 = 11/3 * 11/2 = 121/6 = 20 1/6
3) 2 2/5 * 4 7/12 = 12/5 * 55/12 = 11
4) 50-20 1/6 = 49 6/6 - 20 1/6 = 29 5/6
5) 29 5/6 +11 = 40 5 /6