-6.607142857
The last 7 is in the billionths place. Therefore, the mixed number is:
-6 607142857/1000000000
And the improper fraction is found by multiplying 1 billion times 6, then adding 607142857, then putting that result over 1 billion. (and don't forget the negative sign)
Answer: 660712857/1000000000
The digits 142857 also appear in the fraction 1/7, so maybe you're looking for a different answer.
Let x = 6.607142857142857142857...
Then 1000x = 6607.142857... and 1000000000x = 6607142857.142857...
Subtract equations:
999999000x = 6607142857 - 6607
999999000x = 6607136250
x = 6607136250/99999999000
Which reduces to 185/28. Don't forget the negative sign though!
Answer: -185/28
The last 7 is in the billionths place. Therefore, the mixed number is:
-6 607142857/1000000000
And the improper fraction is found by multiplying 1 billion times 6, then adding 607142857, then putting that result over 1 billion. (and don't forget the negative sign)
Answer: 660712857/1000000000
The digits 142857 also appear in the fraction 1/7, so maybe you're looking for a different answer.
Let x = 6.607142857142857142857...
Then 1000x = 6607.142857... and 1000000000x = 6607142857.142857...
Subtract equations:
999999000x = 6607142857 - 6607
999999000x = 6607136250
x = 6607136250/99999999000
Which reduces to 185/28. Don't forget the negative sign though!
Answer: -185/28