5.2+(-8 4/15+а) при а=-3/5

Question

5.2+(-8 4/15+а) при а=-3/5

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Answer 1

5,2-8 4/15 + а
52/10-124/15 + а
156/30 - 248/30 + а
-92/30 + а
Если а = -3,5, то -92/30 + (-35/10) = -92/30 - -105/30 = 197/30 = 6 17/30