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Mathematics 7 Online
OpenStudy (hellomynameiskam):

Which fraction is greater than - 7/12? A. - 3/4 B. - 13/18 C. - 2/3 <--- my answer D. - 5/9

OpenStudy (welshfella):

- 2/3 can be written as -8/12

OpenStudy (welshfella):

is that greater than -7/12?

OpenStudy (hellomynameiskam):

Ohh. So can A be the answer?

OpenStudy (anonymous):

a can also be shown as 9/12

OpenStudy (welshfella):

i thimk you might be guessing what is -3/4 as a fraction over 12?

OpenStudy (welshfella):

@Nivux - dont forget the negative

OpenStudy (anonymous):

oh thanks so much @welshfella i totally missed that sorry both of you guys

OpenStudy (anonymous):

so a can be shown as -9/12

OpenStudy (anonymous):

And sorry again

OpenStudy (welshfella):

yes and thats is less than -7/12 so its not A

OpenStudy (welshfella):

the other 2 b and d are not so easy to compare with -7/12

OpenStudy (welshfella):

i suggest you convert -7/12 to a fraction over 36 and do the same with -13/18 to compare with B

OpenStudy (welshfella):

-7/12 * 3/3 = -21/36

OpenStudy (welshfella):

now multiply -13/18 by 2/2

OpenStudy (hellomynameiskam):

-26/36

OpenStudy (welshfella):

right so comparing -26/36 with -21/36 which is greater?

OpenStudy (welshfella):

note we have negatives here

OpenStudy (hellomynameiskam):

- 13/18 ?

OpenStudy (hellomynameiskam):

d ?

OpenStudy (welshfella):

- I had a brainstorm then No - 21/36 or -7/12 is greater

OpenStudy (welshfella):

d is correct note with negative numbers the smaller numerator is greater

OpenStudy (welshfella):

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