SOLUTION: Would the follow proportion be a rational expression? If so, why? If not, why not? 2 / x = 5/7?

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Question 351703: Would the follow proportion be a rational expression? If so, why? If not, why not?
2 / x = 5/7?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
No, rational expressions are ratios of integers.
Since 5x=14, x=14%2F5, so x is not an integer.