(G) Explain that two fractions are equivalent if and only if they are both represented by the same point on the number line or represent the same portion of a same size whole for an area model
3.NF.3 Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.3.NF.3.A
3.NF.3.A Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number line.3.NF.3.B
3.NF.3.B Recognize and generate simple equivalent fractions, e.g., 1/2 = 2/4, 4/6 = 2/3. Explain why the fractions are equivalent, e.g., by using a visual fraction model.