anonymous
  • anonymous
Simplify. 5 1/3 + (-3 9/18) A. 1 5/6 B. 2 8/15 C. 3 8/13 D. 8 5/6
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1341642729696:dw|
anonymous
  • anonymous
it is 18 or 8
anonymous
  • anonymous
|dw:1341642903689:dw|

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anonymous
  • anonymous
yes
anonymous
  • anonymous
18 sorry
anonymous
  • anonymous
b is ans
anonymous
  • anonymous
Thanks N why tho?
anonymous
  • anonymous
??
anonymous
  • anonymous
I mean why B sorry I kinda like to know why just so I understand ^ ^
anonymous
  • anonymous
The answer is NOT B. I'll explain in my next post.
anonymous
  • anonymous
Since any number divided by itself equals 1, you can rewrite 1 as a fraction, e.g. \[1 = \frac{2}{2} = \frac{3}{3} = \frac{6}{6}\] Any whole number can be rewritten as a fraction by multiplying it by 1 in the form of a fraction. 5 can be made into a fraction like so: \[5 * 1 = 5*\frac{3}{3} = \frac{15}{3}\] \[5\frac{1}{3} = \frac{15}{3} + \frac{1}{3} = \frac{15+1}{3} = \frac{16}{3}\]
anonymous
  • anonymous
Similarly, fractions can also be rewritten by multiplying them by 1 in the form of a fraction. In this case we'll need to multiply it by something to get the denominator to equal 18. What fraction do you think it should be @HammerG ?
anonymous
  • anonymous
yeh its C from what I got.
anonymous
  • anonymous
Nope. If you show your work I can help you figure out where you went of the rails, so to speak.
anonymous
  • anonymous
no its b
anonymous
  • anonymous
5 and one third minus three and nine eighteenths cannot possibly be B. Even Wolfram Alpha agrees with me.
anonymous
  • anonymous
\[5 + \frac{1}{3}-(3+\frac{9}{18})\]
anonymous
  • anonymous
8 5/6
anonymous
  • anonymous
@wired yo did a big flaw
anonymous
  • anonymous
its not(3+9/18)
anonymous
  • anonymous
that term value comes out to (16/3)-(63/18) =1.833
lgbasallote
  • lgbasallote
\[\huge 5 \frac{1}{3} = \frac{16}{3}\] \[\huge -3\frac{9}{18} \implies -3\frac 12 = -\frac{7}{2}\] \[\huge \frac{16}{3} - \frac{7}{2} = \frac{32}{6} - \frac{21}{6}\]
lgbasallote
  • lgbasallote
\[\huge 1.833 \ne 2\frac{8}{15}\]
anonymous
  • anonymous
another big flaw@igbasallote..it is not fraction to cancel like that(3 9/18)...it is a mixed fraction
lgbasallote
  • lgbasallote
\[3\frac{9}{18} = 3\frac{1}{2}\]
lgbasallote
  • lgbasallote
try it
lgbasallote
  • lgbasallote
see for yourself
anonymous
  • anonymous
no yaar
anonymous
  • anonymous
\[\frac{9}{18} = \frac{1}{2}\] \[3\frac{1}{2} = \frac{6}{2}+\frac{1}{2}=\frac{7}{2}\] \[\frac{16}{3}+-\frac{7}{2} = \frac{16}{3}-\frac{7}{2} = \frac{32}{6}-\frac{21}{6} = \frac{11}{6}=1\frac{5}{6}\] @Raja99 What are you talking about? We KNOW it's a mixed fraction, hence why we're showing our work converting it to fractions, giving them equal denominators, and then adding them together and turning them back into a mixed fraction!
lgbasallote
  • lgbasallote
http://www.wolframalpha.com/input/?i=5+1%2F3++-+3+9%2F18
lgbasallote
  • lgbasallote
^exactly what i wrote
anonymous
  • anonymous
1 5/6 is the answer
anonymous
  • anonymous
anonymous
  • anonymous
okay don't want to get confused lol.
anonymous
  • anonymous
All I can tell you is that @lgbasallote and I got the same answer, Wolfram Alpha got the same answer, and we showed how we got it, whereas Raja99 hasn't shown any of his work.
anonymous
  • anonymous
@igbasallote is correct
anonymous
  • anonymous
Can one person write out the whole problem step by step so i can kno exatly how to it an whats the answer is
anonymous
  • anonymous
can one person show the whole work for this work please

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