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TriC-MathMOOC 17 Online
OpenStudy (anonymous):

7 over 9 minus 1 over 12??

OpenStudy (anonymous):

Is the question correct?

OpenStudy (anonymous):

yes

OpenStudy (unklerhaukus):

\[{7 \over 9} - {1 \over 12}\] ?

OpenStudy (jfraser):

find a common multiple of the denominators. 36 comes to mind

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

so my answer would be 7 over 36 and 1 over 36?

OpenStudy (anonymous):

We will find out the L.C.M and that is 36 7*4-1*3/36 28-3/36 25/36

OpenStudy (anonymous):

Thank you soo much it makes so much more sense

OpenStudy (anonymous):

Your welcome :)

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