standard_description: Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.
problem_activity: Lola made lasagna for a church potluck. Below represents how much of the two pans of lasagna were eaten.
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Lola says
$$3\over 4$$
of the lasagna was eaten. Milton, Lola’s brother, says
$$6\over 4$$
of the lasagna was eaten. Who is correct? Explain your answer.


aligns: no