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Mathematics 7 Online
OpenStudy (anonymous):

5-2 5/6

OpenStudy (mathteacher1729):

is that a mixed fraction problem?

OpenStudy (mathteacher1729):

\[5 - 2 \dfrac{5}{6}\] The first thing is to express EVERYTHING in terms of sixths... 5 = 30/6 (because 30 divided by 6 is 5) \[2\frac{5}{6} = 2 + \frac{5}{6}\] So write 2 in terms of sixths... 2 = 12/6 (because 12 divided by 2 is 6). So the original problem becomes... \[\frac{30}{6}+\frac{12}{6}+\frac{5}{6}\] can you do the rest from here?

OpenStudy (cathyangs):

er...it's \[_{6}^{30}-_{6}^{12}-_{6}^{5}\] math teacher is rmostly right, but it's subtracting

OpenStudy (ash2326):

it's 5-2 5/6 5-17/6 30/6-17/6 =13/6

OpenStudy (mathteacher1729):

Oh my gosh, I'm sorry, I missed the subtraction sign! :(

OpenStudy (cathyangs):

that is correct! :D

OpenStudy (mathteacher1729):

You still have to write everything in terms of sixths, though. \[5 - 2\frac{5}{6} = \frac{30}{6}- \left(\frac{6}{12}+\frac{5}{6}\right)\] Which is \[\frac{30}{6}- \frac{6}{12}-\frac{5}{6}\]

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