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Fill + or - for o and make this true: 1 o 1/2 o 1/3 o 1/4 o 1/5 o 1/6 o 1/7 o 1/8 o 1/9 o 1/10 o 1/11 o 1/12 = 0

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If possible fill + or - for o and make this true, if not possible then provide the reasoning...

1 o 1/2 o 1/3 o 1/4 o 1/5 o 1/6 o 1/7 o 1/8 o 1/9 o 1/10 o 1/11 o 1/12 = 0

posted Sep 1, 2017 by anonymous

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1 Answer

0 votes

it's not possible to get zero with + or -.
Every next number is less than previous one and all have unique difference, hence the sum of any number groups can't be equal

answer Jul 9, 2018 by Hanifa Mammadov
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