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Mathematics 13 Online
OpenStudy (anonymous):

5/12-(4/5+1/4)=

OpenStudy (gorv):

u know to calculate LCM

OpenStudy (anonymous):

No I'm bad at math I need hwlp

OpenStudy (nurali):

\[\frac{ 5 }{ 12 }-(\frac{ 4 }{ 5 }+\frac{ 1 }{ 4 })\]

OpenStudy (nurali):

Taking LCM

OpenStudy (nurali):

\[\frac{ 5 }{ 12 }-(\frac{ 4*4+1*5 }{ 5*4 })\]

OpenStudy (nurali):

\[\frac{ 5 }{ 12 }-(\frac{ 16+5}{ 20 })\]

OpenStudy (nurali):

\[\frac{ 5 }{ 12 }-(\frac{ 21 }{ 20 })\]

OpenStudy (nurali):

Again LCM

OpenStudy (anonymous):

So 21/20? Ugh lol

OpenStudy (nurali):

\[\frac{ 5*20 -21*12}{ 12*20 }\]

OpenStudy (nurali):

\[\frac{ 100-252 }{ 240 }\]

OpenStudy (nurali):

\[\frac{ -152 }{ 240 }\]

OpenStudy (anonymous):

88?

OpenStudy (nurali):

\[\frac{ -19 }{ 30 }\]

OpenStudy (anonymous):

+11?

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