【實用教育app】Subtracting Like Fractions|最夯免費app-綠色工廠好玩App

**This app is going to be updated soon. It does not work with iOS8. Learn how to subtract like fractions with this Common Core standards aligned iPad app. Learning Objective• Subtract like fractions • Find the greatest common factor to reduce fractions • Create and solve problems subtracting like fractionsOther Features• Animated lesson teaching how to subtract like fractions• Vocabulary/Keywords• Printable Worksheet linkGrade Level(s)3 4 5Common Core Standards4.NF.3a Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.4.NF.3b Decompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation. Justify decompositions, e.g., by using a visual fraction model. Examples: 3/8 = 1/8 + 1/8 + 1/8 ; 3/8 = 1/8 + 2/8 ; 2 1/8 = 1 + 1 + 1/8 = 8/8 + 8/8 + 1/8.4.NF.3c Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.