Найдите значения выражения: а) (16,5 - 13 7/9) * 6/11 +2,2(8/33 - 1/11) + 3 2/11

а) (16,5 - 13 7/9) * 6/11 +2,2(8/33 - 1/11) + 3 2/11=3 2/3

16,5 - 13 7/9=16 1/2-13 7/9=33/2-124/9=

=(33*9-124*2)/18=(297-248)/4/18=49/18

49/18*6/11=49/33

8/33 - 1/11=(8-1*3)/33=5/33

2,2*5/33=2 1/5*5/33=11/5*5/33=1/3

5/33+1/3+3 2/11=5/33+1/3+35/11=

=(5+1*11+35*3)/33=121/33=3 22/33=3 2/3