5 1/6-(17/9+а),если а=1,5
5 1/6-(17/9+а),если а=1,5 5 1/6 - 17/9 - а = 5 3/18 - 34/18 - а = 93/18 - 34/18 - а = 59/18 - а = 59/18 - 1,5 = 59/18 - 1 5/10 = 3 5/18 - 1 1/2 = 3 5/18 - 1 9/18 = 2 23/18 - 1 9/18 = 1 14/18 = 1 7/9
17/9+1,5=17/9+1 5/10=17/9+1 1/2=17/9+3/2=34/18+27/18=61/18=3 7/18 5 1/6-3 7/18=5-3+3/18-7/18=2-4/18=1+18/18-7/18=1+11/18=1 11/18