Dividing Fractions and Mixed Numbers

Topics for Today:

We are almost done working through fraction operations and today we discussed dividing fractions.  

MAIN IDEA

• We don’t really “divide” fractions – we multiply by the inverse also known as the reciprocal. 
• Just like with multiplication, mixed numbers must be converted to improper fractions before we may begin.
• Once we rewrite the problem as multiplication, we then just follow the rules of multiplying fractions.
• When multiplying fractions . . .We take out common factors in the numerator and denominator,
• Next, we multiply numerators, and then
• We multiply denominators.
• Final answers should always be in simplest form.
• Some remember the process as   KEEP --- CHANGE --- FLIP

Vocabulary:

reciprocal

Sections Covered in Textbook:

4-5: Dividing Fractions and Mixed Numbers (pages 207-212)

Resources & Tutorials:

1)What is the reciprocal rule of dividing fractions?

2) What is a reciprocal?

3 How do you divide fractions?

4) How do you divide mixed numbers?

5) Dividing Fractions and Mixed Numbers Class notes