Video Solutions to help Grade 6 students learn how to divide fractions by mixed numbers.

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Lessons for Grade 6

Common Core For Grade 6

• Students divide fractions by mixed numbers by first converting the mixed numbers into a fraction with a value larger than one.

• Students use equations to find quotients.

Classwork

Example 1 : Introduction to Calculating the Quotient of a Mixed Number and a Fraction

a. Carli has 4 1/2 walls left to paint in order for all the bedrooms in her house to have the same color paint. However, she has used almost all of her paint and only has 5/6 of a gallon left. How much paint can she use on each wall in order to have enough to paint the remaining walls?

b. Calculate the quotient.

2/5 ÷ 3 4/7

Lesson 6 Problem Set Sample Solution

1. Write a partitive division story problem for 45 ÷ 3/5

2. Write a partitive division story problem for 100 ÷ 2/5

Lesson 7 Student Outcomes

Students formally connect models of fractions to multiplication through the use of multiplicative inverses as they are represented in models.

The **reciprocal**, or inverse, of a fraction is the fraction made by interchanging the numerator and denominator.

Two numbers whose product is 1 are **multiplicative inverses**.

Example 1:

3/4
÷ 2/5

Lesson 8 Student Outcomes

Students divide fractions by mixed numbers by first converting the mixed numbers into a fraction with a value larger than one.

Students use equations to find quotients.

Example 1: Introduction to Calculating the Quotient of a Mixed Number and a Fraction

Carli has 4 1/2 walls left to paint in order for all the bedrooms in her house to have the same color paint. However, she has used almost all of her paint and only has 5/6 of a gallon left. How much paint can she use on each wall in order to have enough to paint the remaining walls?

Calculate the quotient. 2/5 ÷ 3/4