rainbow_rocks03
  • rainbow_rocks03
PLZ explain, NO direct answers, Will medal for best response.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
rainbow_rocks03
  • rainbow_rocks03
rainbow_rocks03
  • rainbow_rocks03
@haleyelizabeth2017
zepdrix
  • zepdrix
Were you able to find the LCM of 8 and 10? :)

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More answers

rainbow_rocks03
  • rainbow_rocks03
i am typing it right now...
rainbow_rocks03
  • rainbow_rocks03
LCM of 8 and 10 is 40?
zepdrix
  • zepdrix
\(\large\rm 8=2\cdot4\) \(\large\rm 10=2\cdot5\) \(\large\rm LCM(8,10)=2\cdot4\cdot5=40\) Ok good!
zepdrix
  • zepdrix
\[\large\rm \frac{5}{8}-\frac{3}{10}\color{royalblue}{\frac{4}{4}}\]To get that denominator, clearly the second fraction needs a 4. What about the first one? :o
rainbow_rocks03
  • rainbow_rocks03
umm idk
zepdrix
  • zepdrix
8 times something is 40, hmm
rainbow_rocks03
  • rainbow_rocks03
5
zepdrix
  • zepdrix
Ok good.\[\large\rm \color{royalblue}{\frac{5}{5}}\cdot\frac{5}{8}-\frac{3}{10}\cdot\color{royalblue}{\frac{4}{4}}\]
zepdrix
  • zepdrix
So we know the denominators will be 40, we worked that out already,\[\large\rm \frac{5\cdot5}{40}-\frac{3\cdot4}{40}\]Can you figure out the tops? :)
rainbow_rocks03
  • rainbow_rocks03
yes, 5*5=25 and 3*4=12
rainbow_rocks03
  • rainbow_rocks03
sorry I took long to response my internet was loading REALLY slow
rainbow_rocks03
  • rainbow_rocks03
@zepdrix
zepdrix
  • zepdrix
\[\large\rm \frac{25}{40}-\frac{12}{40}\]
zepdrix
  • zepdrix
Good :) Now just subtract numerators, ya?
rainbow_rocks03
  • rainbow_rocks03
25-12=13
rainbow_rocks03
  • rainbow_rocks03
@zepdrix
rainbow_rocks03
  • rainbow_rocks03
@zepdrix
rainbow_rocks03
  • rainbow_rocks03
so my answer 13/40
zepdrix
  • zepdrix
yay good job \c:/

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