Mathematics
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OpenStudy (rainbow_rocks03):
PLZ explain this NO direct answers! Will medal for best response.
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OpenStudy (rainbow_rocks03):
I am putting the question down :)
OpenStudy (rainbow_rocks03):
OpenStudy (rainbow_rocks03):
@peachpi
OpenStudy (anonymous):
ok, so start the same way. What's the lcm/lcd of 8 and 12?
OpenStudy (rainbow_rocks03):
The LCD of 8 & 12 is 24?
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OpenStudy (anonymous):
yes. now choose what to multiply the fractions by.
8 * ___ = 24
12 * ___ = 24
OpenStudy (anonymous):
what are the blanks?
OpenStudy (rainbow_rocks03):
the blanks are...
OpenStudy (rainbow_rocks03):
3 and 2, right?
OpenStudy (anonymous):
right, so mulitply the first fraction by 3/3 and the second by 2/2
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OpenStudy (anonymous):
yes that is what you have to multiply each of them by and the final answer would be...
OpenStudy (anonymous):
\[\frac{ 7\times3 }{ 8\times3 }-\frac{ 5\times2 }{ 12\times2 }\]
OpenStudy (anonymous):
21/24-10/24=11/24
OpenStudy (rainbow_rocks03):
7*3=21 , 5*2=10 , 8*3=24 , and 12*2=24
OpenStudy (rainbow_rocks03):
and I said NO direct answers PLZ!
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OpenStudy (anonymous):
yes, try to get into the habit of keeping it all in the fraction, at least on paper
OpenStudy (anonymous):
sorry got a bit carried away
OpenStudy (rainbow_rocks03):
it's alright :)
OpenStudy (anonymous):
so all that's left is to subtract the numerators
OpenStudy (rainbow_rocks03):
hang on i will BRB really quick @peachpi
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OpenStudy (rainbow_rocks03):
alright I am back @peachpi
OpenStudy (anonymous):
did you get it?
OpenStudy (rainbow_rocks03):
well you said to subtract the numerators
OpenStudy (rainbow_rocks03):
but I havent done that yet so...
OpenStudy (anonymous):
you have this, so now subtract 21 and 10
21/24-10/24 =
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OpenStudy (rainbow_rocks03):
sorry I took long right now my internet had disconnected and it took a long time to laod!
OpenStudy (rainbow_rocks03):
*load
OpenStudy (rainbow_rocks03):
so 21-10=11 and the denominators are 24 so my answer is 11/24 ! TY SO MUCH @peachpi !!! :D
OpenStudy (rainbow_rocks03):
I actually need help with ONE more and that's it, do you think you can help? if not it's alright ig. @peachpi