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Mathematics 17 Online
OpenStudy (anonymous):

- 1/3 times (8 1/7)

Parth (parthkohli):

\[{8 {1 \over 7} = {56 + 1 \over 7}}\]

Parth (parthkohli):

\[= {-1 \over 3} \times {57 \over 7}\]

Parth (parthkohli):

\[= {-1 \times 57\over 3 \times 7}\]

Parth (parthkohli):

Something can cancel out now.

OpenStudy (anonymous):

crap I don't get it.

OpenStudy (anonymous):

\[-57/21\] ?

OpenStudy (anonymous):

Now I need to simplify it, right? How do I do that?

OpenStudy (anonymous):

divide both numbers by 3

OpenStudy (anonymous):

so -19/7 ?

OpenStudy (anonymous):

I'm so confused.

OpenStudy (anonymous):

yes, can you write it in this form \[a \frac{ b }{ c }\]

OpenStudy (anonymous):

out of all my answer choices there is only one in that form and its -2 5/7 ? Is that right.

OpenStudy (anonymous):

try it how many 7s are in 19

OpenStudy (anonymous):

2?

OpenStudy (anonymous):

thats the a now what is left from the 19?

OpenStudy (anonymous):

5, which makes 19. So it's right , right?

OpenStudy (anonymous):

thats the b and c is the 7 so -19/7 = -2 5/7

OpenStudy (anonymous):

Thank you soooo much.

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