anonymous
  • anonymous
Can anyone tell me -15/3/5(3/5 is a fraction) Will medal and fan
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
\[-15\div \frac{ 3 }{ 5 }\]
anonymous
  • anonymous
that's the equation in case it looked confusing in the post
anonymous
  • anonymous
When you divide by a fraction, it is the same as multiplying by the reciprocal (the fraction turned upside down). \[-15 \div\dfrac{3}{5}=-15\times\dfrac{5}{3} \]Can you tell me what the answer is now?

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anonymous
  • anonymous
okay so\[\left(\begin{matrix}-15 \\ ?\end{matrix}\right)\]
anonymous
  • anonymous
lol thats supposed to say \[\frac{ -15 }{ 1}\]
anonymous
  • anonymous
\[\dfrac{-15\times5}{3}=-5\times5=?\]
anonymous
  • anonymous
then you multiply the numerators and denominators
anonymous
  • anonymous
its supposed to be -5 or -15? :)
anonymous
  • anonymous
-5, I divided -15 by 3 :) We could also write this as:\[\dfrac{-15\times 5}{3}=\dfrac{-75}{3} =?\]
anonymous
  • anonymous
thats weird in my book it says keep the first fraction change division to multiplication and then replace the 2nd fraction with its reciprocal
anonymous
  • anonymous
oh ok i see what you did you just canceled out the 1?
anonymous
  • anonymous
oh okay so the answer is gunna be\[\frac{ -75 }{ 3}\]
anonymous
  • anonymous
then simplify it to -25?
anonymous
  • anonymous
Oh sorry! I see what you meant now. Do you understand this: \[-15 \div\dfrac{3}{5}=\dfrac{-15}{1}\times\dfrac{5}{3} = \dfrac{-15\times5}{1\times3}\] Yes I skipped a step as the 1 on the bottom doesn't do anything, sorry for the confusion.
anonymous
  • anonymous
Exactly, great work!
anonymous
  • anonymous
Thank you!

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