Răspuns :
4 2/3 - 1 1/6= 8/3-1/5= 17/15
3 5/18 - 2 1/9= 15/18-2/9=11/18
7 11/15 - 2 1/5 = 77/15 - 2/5 = 71/15
9 3/4 - 8 7/20 = 27/4 - 56/20 = 79/20
5 5/6 -1 1/3 = 25/6 - 1/3 =23/6
8 8/9 - 2 2/3= 64/9 - 4/3 = 52/9
9 17/24 - 8 1/4 = 153/24 - 8/4 = 35/8
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