5th Grade Fractions

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5th Grade Fractions by Mind Map: 5th Grade Fractions

1. Adding and Subtracting Fractions

1.1. 1) Find the smallest multiple (LCM) of both numbers. 2( Rewrite the fractions as equivalent fractions with the LCM as the denominator.

1.2. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. a/b + c/d = (ad + bc)/bd.)

1.3. 5th Grade Math | Free, Online Math Games | Math Playground

2. Multiplying and Dividing Fractions

2.1. 1): Multiply the numerators from each fraction by each other (the numbers on top). The result is the numerator of the answer. 2): Multiply the denominators of each fraction by each other (the numbers on the bottom). The result is the denominator of the answer. 3: Simplify or reduce the answer.

2.2. Example (2/3) × (4/5) = 8/15. Formula: (a/b) × (c/d) = (ac)/(bd).

3. Unit Fractions

3.1. A unit fraction is a rational number written as a fraction where the numerator is one and the denominator is a positive integer

3.2. Example: 4 ÷ (1/5) = 20 because 20 × (1/5) = 4.

4. Area with Fraction

4.1. Area=lw

4.2. How to Multiply Fractions to Find an Area of a Rectangle : Fractions 101