Chapter 7: Multiply Fractions

5.NF.B.4 - Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.

- - - - Interpret the product (a/b) x q as a parts of a partition of q into b equal parts, equivalently as the result of a sequence of operations a x q / b
      - Find the area of a rectangle with fractional side lengths by tiling it with unit squares of the appropriate unit fraction side lengths, and show that the area is the same as would be found by multiplying the side lengths. Multiply fractional side lengths to find areas of rectangles, and represent fraction products as rectangular areas.

5.NF.B.5 - Interpret multiplication as scaling (resizing), by:

- - - - Comparing the size of a product to the size of one factor on the basis of the size of the other factor, without performing the indicated multiplication.
      - 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 X a )/(n x b) to the effect of multiplying a/b by 1.

5.NF.B.6 - Solve real world problems involving multiplication of fractions and mixed numbers, e.g., by using visual fraction models or equations to represent the problem.

Click on the Quizlet button to access the vocabulary words that you will need to know in Chapter Seven

Chapter 7 Vocabulary

denominator - the number below the bar in a fraction that tells how many equal parts are in the whole or in the group
equivalent fractions - fractions that name the same amount or part
mixed numbers - a number that is made up of a whole number and a fraction
numerator - the number above the bar in a fraction that tells how many equal parts of the whole are being considered
product - the answer to a multiplication problem
simplest form - a fraction in which 1 is the only number that can divide evenly into the numerator and the denominator