Скачать или смотреть How to find equivalent fractions - Grade 4 Illustrative Math Unit 2 B review

Students learn to generate equivalent fractions using multiplication and division with factors and multiples of the numerator and denominator. They begin by recognizing that equivalent fractions represent the same point on a number line and have the same size. Then, students apply this understanding to create equivalent fractions numerically by multiplying or dividing both the numerator and denominator by the same number.

Standards:
NY-4.NF.1 Explain why a fraction a/b is equivalent to a fraction (a × n)/(b × n) 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.