SOLUTION: write a fraction expression equivalent to 2/3 with a denominator of 12. I know the answer, i dont how to come about the answer. please help

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: write a fraction expression equivalent to 2/3 with a denominator of 12. I know the answer, i dont how to come about the answer. please help       Log On


   

Question 254480: write a fraction expression equivalent to 2/3 with a denominator of 12. I know the answer, i dont how to come about the answer. please help

Found 2 solutions by stanbon, richwmiller:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
write a fraction expression equivalent to 2/3 with a denominator of 12. I know the answer, i dont how to come about the answer.
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Ask yourself, "What would I need to multiply 3 by to get 12 in
the denominator?".
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The answer would be "4".
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So you need to multiply numerator and denominator by 4 to get:
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(2/3)(4/4) = 8/12
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Cheers,
Stan H.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
so what answer did you find in the book?
2/3=x/12
solve for x
cross multiply OR
multiply both sides by 12 and both sides by 3
24=3x
8=x