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Mathematics 8 Online
OpenStudy (anonymous):

Question In Comments..

OpenStudy (anonymous):

Which of the following is equivalent to \[6\frac{ 3 }{ 7 } \div 12\] Choices: a. \[6\frac{ 1 }{ 28 }\] b. \[1\frac{ 13 }{15 }\] c. \[\frac{ 15 }{ 28 }\] d. \[2\frac{ 1 }{ 28 }\]

OpenStudy (austinl):

Here is a trick that I learned to help with these. We have \[6\frac{3}{7}\div 12\] We can do this to make the fraction proper. \[\frac{(7\times 6) + 3}{7} = x\] \[x\times \frac{1}{12} = final answer\]

OpenStudy (anonymous):

@austinL I think its D but Im not clearly sure

OpenStudy (anonymous):

So.. when I multiplied 7x6 that got me 42 but + 3 I have 45 on the numerator. \[\frac{ 45 }{ 7 } \times \frac{ 1 }{ 12 }\] so i multiply this and I get the answer right?

OpenStudy (anonymous):

@austinL

OpenStudy (austinl):

Correct! It will likely need simplified though!

OpenStudy (anonymous):

@austinL nvm its D. right?

OpenStudy (austinl):

\[\frac{45\times 1}{7\times 12}=?\]

OpenStudy (anonymous):

@austinL its D. right

OpenStudy (anonymous):

I mean C

OpenStudy (austinl):

C is correct.

OpenStudy (anonymous):

@austinL Thank you

OpenStudy (austinl):

You're welcome!

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