Math Help! I will medal and fan! First timer OS user :)

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Math Help! I will medal and fan! First timer OS user :)

Mathematics
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1 Attachment
Someone please help :/
hint: (11/15) is about (10/15) which is equal to (2/3), so our answer should be somewhere between (1/2) and 1

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Okay what about the other one can ya kind help and guide me through..
4 and 3/4 rounds up to 5 7 and 2/17 rounds down to 7 5*7 = ?
5 *7 = 35
good, so the answer should be around 35
Awesome. I'm kinda new t this, do u mind helping with more :) I always do not ask for answers and like to learn. I only have 10 questions. we did two does 8 left. Please? @Vocaloid
sure.
Oh My! thanks so much!
1 Attachment
first find the least common multiple of 6 and 9
18
good, now we convert both fractions to a denominator of 18
right.
|dw:1443667980784:dw|
|dw:1443668011356:dw|
then convert 23/18 into a mixed number
Okay.. so it would be... 1 5/18
good!
ahh so whatever you do to he top do to the bottom?
yup!
Oh ok.
for the second one, convert both numbers to improper fractions
|dw:1443668335836:dw|
|dw:1443668362127:dw|
right. and the second number would be 185/12
good, now convert both to have the same denominator the least common multiple of 12 and 8 is 24, so...
|dw:1443668542925:dw|
Ok Just a sec going to do on paper :)
Okay so the -87 one is 261/24?
don't forget the negative sign -261/24
oops yeah
keep going
the second one is 370/24
good, now add the two fractions together -261 + 370 = ?
-631
check your math carefully
hint: -261 + 370 = 370 - 261
oh sorry 731
still not right 370 - 261 = ?
109
sorry was adding :s
much better ^_^ so our fraction is 109/24, now we can convert that to a mixed number 109/24 = 4 13/24 (mixed number)
okay nice!
But I don't have any answer choices that say 4 13/24. do i simplify
huh, what are the answer choices then? is 109/24 a choice?
I hope I didn't make a mistake somewhere ;-:
nope.
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see...
oh right I see what I did wrong|dw:1443669786964:dw|
we end up with 4 and 7/24
Ahh Okay I thought I had misunderstood something lol
ready to keep going?
Okay I sorry there is only 8 questions so we are at 5. Thanks again for helping and sticking around
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convert 5/8 and 3/10 to the same denominator, any ideas on where to start?
I wasn't typing i think its stuck lol
uh 80.
almost, we can do 40 instead
Yeah I just realized tht thx
okay.. |dw:1443670407961:dw|
good, so 25/40 minus 12/40 = ?
13/40
great! ready for the next one?
yup.
our fractions are 15/16 and 3/4 we can make the denominator 16 since 15/16 already has 16 as the denominator, all we need to do is convert 3/4 to have a denominator of 16
right so 12/16
great, lets keep going
so I subtract 12/16 and 15/16?
yeah, subtract
15-12= ?
is 3/16
good
Ok the reason I did 7 separate from 8 was because 8 is a work pad, which means is the same we just have to show our work which is no prob
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their LCD is 12.
right?
right, but convert to mixed numbers first
|dw:1443671359350:dw|
aren't I suppose to multiply 10 and 12 then add 11?
|dw:1443671417880:dw|
I am so sorry I had to refresh nd it was loading for ever.
no worries ^_^
so the first one would be -131/12 and the second one would be 29/12
|dw:1443671791958:dw|
not quite
-29/4
now we have -131/12 and -29/4 change the denominator to 12 now

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