anonymous
  • anonymous
I will fan and medal!!!!!!!!!!!!!!!!! Subtract four and one-half minus two and seven-eighths
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
give me a sec
anonymous
  • anonymous
ok
anonymous
  • anonymous
do you need it in fraction or decimal form?

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anonymous
  • anonymous
fraction
anonymous
  • anonymous
Subtract four and one-half minus two and seven-eighths. Choose one answer. A. one and five-eighths B. two and three-eighths C. one and three-eighths D. two and five-eighths
anonymous
  • anonymous
thx for helping me
anonymous
  • anonymous
plz help me!!!!!!!!!!!
anonymous
  • anonymous
hi! first, write that down as fractions...
anonymous
  • anonymous
ok
anonymous
  • anonymous
4 1/2 - 2 7/8
anonymous
  • anonymous
|dw:1432823179938:dw|
anonymous
  • anonymous
great, also note that : \[4\frac{ 1 }{ 2 }=\frac{ 9 }{ 2 }\] what about \[2\frac{ 7 }{ 8 }\] ? can you take it to a full fraction form? how many eighths would that be?
anonymous
  • anonymous
23/8
anonymous
  • anonymous
great! so we have: \[\frac{ 9 }{ 2 } + \frac{ 23 }{ 8 }\] what now? common denominator?
anonymous
  • anonymous
no we have 9/2 - 23/8
anonymous
  • anonymous
we are subtracting
anonymous
  • anonymous
haha, right! sorry... what is the common denominator?
anonymous
  • anonymous
2 4
anonymous
  • anonymous
2 or 4 idk
anonymous
  • anonymous
these are the answers they gave me
anonymous
  • anonymous
A. one and five-eighths B. two and three-eighths C. one and three-eighths D. two and five-eighths
anonymous
  • anonymous
lets rewrite the first fraction: \[\frac{ 9 }{ 2 } = \frac{ 9\times 4 }{ 2 \times 4 } = \frac{ 36 }{ 8 }\] now we have the same denominator :)
anonymous
  • anonymous
so then we do 36/8-23/8=13/8
anonymous
  • anonymous
yeah!!
anonymous
  • anonymous
simplify?
anonymous
  • anonymous
well we can't, but we can take eight eighths to make a whole, and we are left still five eighths... can you translate that to numbers and fractions?
anonymous
  • anonymous
umm...
anonymous
  • anonymous
1 5/8
anonymous
  • anonymous
look: \[\frac{ 13 }{ 8 } = \frac{ 8+5 }{ 8 }=\frac{ 8 }{ 8 }+\frac{ 5 }{ 8 }=1\frac{ 5 }{ 8 }\]
anonymous
  • anonymous
exactly! what you said...
anonymous
  • anonymous
Thx you sooo muchh..u saved the day
anonymous
  • anonymous
glad to help!

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