Colorado Academic Standards for Mathematics (2010)
4.1.2.a.i
f207e253-2491-5879-91c8-c477917493b7 1 4.1.2 4.1.2.a 4.1.2.a.i
Explain equivalence of fractions using drawings and models.
Translations
Common Core State Standards for Math
Use equivalent fractions as a strategy to add and subtract fractions.
Explaining why multiplying a given number by a fraction greater than 1 results in a product greater than the given number (recognizing multiplication by whole numbers greater than 1 as a familiar case); explaining why multiplying a given number by a fraction less than 1 results in a product smaller than the given number; and relating the principle of fraction equivalence a/b = (n×a)/(n×b) to the effect of multiplying a/b by 1.