SOLUTION: I need help solving these particular fractions. An example of one would be -5/8 = k/4. How would I go about solving this.
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Question 80867: I need help solving these particular fractions. An example of one would be -5/8 = k/4. How would I go about solving this.
Found 2 solutions by mathdoc315, praseenakos@yahoo.com:
Answer by mathdoc315(6) (Show Source): You can put this solution on YOUR website!
-5/8 = k/4
A good technique to know here is cross-multiplying.
If b and d are nonzero then these two equations are equivalent:
<==>
For the example, you can solve
or .
I hope this works for the rest of your problems as well.
Answer by praseenakos@yahoo.com(507) (Show Source): You can put this solution on YOUR website!
QUESTION:
-5/8 = k/4
ANSWER:
To solve such fraction, you have to eliminate all the terms together with the variable (here k).
Here the given fraction is,
-5/8 = k/4
We need to solve it for the variable 'k'
Here the numbers in the denominators are 8 and 4.
Multiply the whole expression with 32 (becoz, 8 * 4 = 32 )
==> 32 * (-5/8) = 32 * ( k/4)
==> 4 * -5 = 8 * k
==> -20 = 8k
Now divide the whole expression by 8 ( because we need to find the value of k, so eliminate all other terms together with k.)
==> -20/8 = 8k/8
==> -20/8 = k
==> k = -20/8, which can be again simplified, then we have,
k = -5/2
To check your answer, plugg the value of k in the given expression, then you will obtain, right side = left side.
Hope you you found this method useful.
Regards.
Praseena.
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