SOLUTION: What is -9/7m*-9/7n

Question 983781: What is -9/7m*-9/7n
Found 2 solutions by Alan3354, josgarithmetic:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
What is -9/7m*-9/7n
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It's a multiplication problem.
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But, you need to clarify the denominators.
Is it (-9/7)m ?
Or -9/(7m) ?
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Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
Truthfully, -9/7m*-9/7n is ambiguous.

No groupings shown; two operation symbols directly neighboring; you might really mean this:
-9/7m*(-9)/7n

Using order of operations for multiplications and divisions going strictly from left to right:
(-9m)/7*(-9)/7n
(-9m)(-9)/7/7n
(-9m)(-9)/(7*7)n
(-9m)(-9)n/(7*7)
((-9)(-9)mn)/(49)
81mn/49

Same steps but including the rendering tags:
---Beware that the rendering on this site does not handle all of this correctly, so it looks wrong.
-----and looks wrong here too;

I believe your original expression SHOULD be shown as this:
((-9/7)m*(-9)/7)n
which when rendered looks as it should, this way:
You must excuse all the parentheses. The site makes a certain typeset rendering mistake which will not handle ungrouped division followed by multiplication.
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