Durply
  • Durply
HELP PLZZ!!MEDAL and FAN
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Durply
  • Durply
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Durply
  • Durply
i need 3 corrected
Michele_Laino
  • Michele_Laino
hint: we have: \[\begin{gathered} - \frac{5}{{12}} = - \frac{{25}}{{60}} \hfill \\ \hfill \\ - \frac{2}{5} = - \frac{{24}}{{60}} \hfill \\ \end{gathered} \]

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Durply
  • Durply
O SNAP THEY ARE NEGATIVE
Durply
  • Durply
lol so A
Michele_Laino
  • Michele_Laino
correct!
Durply
  • Durply
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Michele_Laino
  • Michele_Laino
-5/7 is negative, so it is located before the number zero: |dw:1434081055552:dw|
Durply
  • Durply
yup
Durply
  • Durply
so far so good
Michele_Laino
  • Michele_Laino
now we have to locate the remainig 2 fractions. what is the least common multiple between 5 and 9?
Durply
  • Durply
2/9
Michele_Laino
  • Michele_Laino
no, it is 45
Durply
  • Durply
what...
Michele_Laino
  • Michele_Laino
do you know what is the least common multiple?
Durply
  • Durply
ya
Michele_Laino
  • Michele_Laino
ok! So the least common multiple between 5 and 9 is 45
Durply
  • Durply
you cant do that
Michele_Laino
  • Michele_Laino
namely it is their product: 9*5=45
Durply
  • Durply
they are both odd
skullpatrol
  • skullpatrol
Rewrite 3/5, 2/9 with a common denominator
Durply
  • Durply
o
Durply
  • Durply
45 ok i see
Michele_Laino
  • Michele_Laino
so we can write this: \[\begin{gathered} \frac{3}{5} = \frac{{27}}{{45}} \hfill \\ \hfill \\ \frac{2}{9} = \frac{{10}}{{45}} \hfill \\ \end{gathered} \]
skullpatrol
  • skullpatrol
27 > 10
Durply
  • Durply
o I GET IT!!!
Michele_Laino
  • Michele_Laino
we have the subsequent graph: |dw:1434081491171:dw|
skullpatrol
  • skullpatrol
You can only compare fractions with a common denominator.
Durply
  • Durply
SO I WAS RIGHT YAAAA!!!
skullpatrol
  • skullpatrol
Or just use your calculator
Michele_Laino
  • Michele_Laino
for example, for 3/5, we have: 45/5 = 9, then 9*3=27, therefore we can write: \[\frac{3}{5} = \frac{{27}}{{45}}\] similarly for 2/9
Durply
  • Durply
wait :S was i correct
Michele_Laino
  • Michele_Laino
yes!
skullpatrol
  • skullpatrol
3/5 = 0.6
Michele_Laino
  • Michele_Laino
it is option C
Durply
  • Durply
ok XD
Durply
  • Durply
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Durply
  • Durply
Im i correct
Durply
  • Durply
am*
Michele_Laino
  • Michele_Laino
we can write this: \[\begin{gathered} - \frac{5}{8} = - \frac{{1575}}{{2520}},\quad - \frac{7}{9} = - \frac{{1960}}{{2520}}, \hfill \\ \hfill \\ - \frac{4}{5} = - \frac{{2016}}{{2520}},\quad - \frac{3}{7} = - \frac{{1080}}{{2520}} \hfill \\ \end{gathered} \]
Durply
  • Durply
wow you are good
Michele_Laino
  • Michele_Laino
since the least common multiple of 8, 9, 5 and 7 is 2520
Michele_Laino
  • Michele_Laino
so, what is the right option?
Durply
  • Durply
B
Michele_Laino
  • Michele_Laino
that's right!
Durply
  • Durply
Thanks so much you did AWESOME
Michele_Laino
  • Michele_Laino
:)

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