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Mathematics 18 Online
OpenStudy (rainbow_rocks03):

PLZ explain this NO direct answers! Will medal for best response.

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?

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

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!

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

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 =

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

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