b=2,8, c=4 1/3, a-?
(a+b+c):3=a
a+2,8+4 1/3 =3a
2 4/5 +4 1/3=2a
(2+4)+(4/5 +1/3)=2a
6+17/15 =2a
6+1 2/15=2a
7 2/15=2a
107/15=2a
107=30a
а=107:30
а=3 17/30
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Answers & Comments
b=2,8, c=4 1/3, a-?
(a+b+c):3=a
a+2,8+4 1/3 =3a
2 4/5 +4 1/3=2a
(2+4)+(4/5 +1/3)=2a
6+17/15 =2a
6+1 2/15=2a
7 2/15=2a
107/15=2a
107=30a
а=107:30
а=3 17/30