2 3/10a-1 2/3 при а=6

Question

2 3/10a-1 2/3 при а=6

Answer 1

2 3/10*6-1 2/3=12 2/5
1) 2 3/10*6=13 4/5
2) 13 4/5-1 2/3=13 12/15-1 10/15=12 2/15

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