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OpenStudy (anonymous):
Evaluate x/y,for x=2/3 and y= 5/6
A. 5/9
B. 4/5
C 5/4
D 9/5
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OpenStudy (skullpatrol):
Any ideas?
OpenStudy (anonymous):
I thinks its C
OpenStudy (skullpatrol):
Why?
OpenStudy (hba):
Show me your working @JhonDoe
OpenStudy (skullpatrol):
|dw:1358255714237:dw|
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OpenStudy (anonymous):
NVM its 9/5 because find the common denaminater wich is 12 and you add them then you simplify them witch its 9/5
OpenStudy (skullpatrol):
|dw:1358255768449:dw|
OpenStudy (hba):
You are still wrong and show us your working @JhonDoe
OpenStudy (anonymous):
ohh @skullpatrol but how do two fractions make a fraction?
OpenStudy (skullpatrol):
You have to simplify it.
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OpenStudy (anonymous):
4/5, \[\frac{ \frac{ 2 }{ 3 } }{ \frac{ 5 }{ 6 } } = \frac{ 2*6 }{ 3*5 } = \frac{ 12 }{ 15 = \frac{ 4 }{ 5 } }\]
OpenStudy (anonymous):
the final equals on the bottom of that fraction was supposed to be 12/15=4/5
OpenStudy (hba):
According to a rule
\[\huge\frac{ \frac{ a }{ b } }{ \frac{ c }{ d } }=\frac{ a }{ b } \times \frac{ d }{ c }\]
OpenStudy (anonymous):
Ok
OpenStudy (anonymous):
\[\left(\begin{matrix}2/3 \\ 5/6\end{matrix}\right)=\frac{ 2*6 }{ 3*5}=\frac{ 12}{15} = \frac{ 4}{5 }\]
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OpenStudy (anonymous):
@skullpatrol
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