anonymous
  • anonymous
PLEASE help! Thanks so much!!
Mathematics
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anonymous
  • anonymous
PLEASE help! Thanks so much!!
Mathematics
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
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anonymous
  • anonymous
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anonymous
  • anonymous
What is 7*3 and 9*5?
anonymous
  • anonymous
63/15 @JosiahG

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anonymous
  • anonymous
The answer should be 21 and 45, written as 21/45. Do you understand how I got that?
anonymous
  • anonymous
Well I got 63/15 because 7*9 is 63 and 5 time 3 is 15. all I have to do is convert. But I guess I got it wrong.
anonymous
  • anonymous
\[-\frac{7}{\cancel{9}^3}\times \frac{\cancel 3^1}{5}=-\frac{7}{15}\]
anonymous
  • anonymous
Oh, there's the issue. You're supposed to multiply the top numbers (numerators) and the bottom numbers (denominators) together, not the same ones on the fraction.
anonymous
  • anonymous
Ohh okay thanks.
anonymous
  • anonymous
what about 3?
anonymous
  • anonymous
First, convert the mixed number into a fraction form so you can multiply it. Do you know how to do that?
anonymous
  • anonymous
yes.
anonymous
  • anonymous
its 8/3
anonymous
  • anonymous
Correct. Now what's 8/3 * 9/1?
anonymous
  • anonymous
so i do 8 times 3 right?
anonymous
  • anonymous
Nono, you're supposed to multiply like this: \[\frac{ 8 }{ 3 } * \frac{ 9 }{ 1 }\]
anonymous
  • anonymous
Multiply 8 * 9 and then 3 * 1
anonymous
  • anonymous
okay sorry.
anonymous
  • anonymous
No worries :) Then what did you get as the answer?
anonymous
  • anonymous
72/3.
anonymous
  • anonymous
Then what can you simplify that as?
anonymous
  • anonymous
so turn it into a mixed?
anonymous
  • anonymous
It wouldn't be a mixed number in this case, because 72/3= 24
anonymous
  • anonymous
oh.
anonymous
  • anonymous
but y cause 72 is larger than 3??
anonymous
  • anonymous
Basically, the fraction means divide, so \[\frac{ 72 }{ 3 } = 24\]
anonymous
  • anonymous
ohhhhh I see.
anonymous
  • anonymous
Awesome, don't hesitate to ask more questions :)

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