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Mathematics 7 Online
OpenStudy (anonymous):

I THINK I KNOW THE ANSWER

OpenStudy (anonymous):

OpenStudy (anonymous):

@4everaddicted2anime

OpenStudy (anonymous):

I solved this and got C

OpenStudy (4everaddicted2anime):

What are all the answer options?

OpenStudy (anonymous):

LOl i cut them off. I am sorry

OpenStudy (anonymous):

OpenStudy (anonymous):

there is the full list

OpenStudy (4everaddicted2anime):

Okay. The answer is not C

OpenStudy (anonymous):

.

OpenStudy (anonymous):

why not?

OpenStudy (4everaddicted2anime):

Here is the equation\[\frac{ 4 }{ 5 }+x=\frac{ 3 }{ 7 }\] To get the x term alone you need to subtract 4/5 from both sides. Here is what you will have now\[x=\frac{ 3 }{ 7 }-\frac{ 4 }{ 5 }\]

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

do i subtract those fractions?

OpenStudy (anonymous):

-1/2

OpenStudy (4everaddicted2anime):

What is the smallest common multiple of 7 and 5?

OpenStudy (anonymous):

35

OpenStudy (4everaddicted2anime):

Okay. To do that you needed to multiply 5 by 7 and 7 by 5 correct?

OpenStudy (anonymous):

yes

OpenStudy (4everaddicted2anime):

This means that you need to multiply 3 by 5 and 4 by 7. After doing this you should get\[x=\frac{ 15 }{ 35 }-\frac{ 28 }{ 35 }\]

OpenStudy (anonymous):

and do i have to subtract these?

OpenStudy (4everaddicted2anime):

Yes

OpenStudy (anonymous):

okay the answer is -13/1

OpenStudy (4everaddicted2anime):

When subtracting two fractions with the same denominator, the answer will have that same denominator

OpenStudy (anonymous):

-13/35 then?

OpenStudy (4everaddicted2anime):

yes

OpenStudy (anonymous):

okay. thank you. can you help with one more please?

OpenStudy (4everaddicted2anime):

yw. sure

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