standard_description: Explain why a fraction a/b is equivalent to a fraction (n × a)/(n × b) by using visual fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size. Use this principle to recognize and generate equivalent fractions.
Grade 4 expectations in this domain are limited to fractions with denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100.
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.


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