5 Minute Check. Essential Question.

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Presentation transcript:

5 Minute Check

Essential Question

Thursday, Oct 22 Lesson 4.2 Multiply Fractions and Whole Numbers

Objective: To understand how to multiply fractions and whole numbers.

Multiply Fractions and Whole Numbers To multiply fractions, multiply the numerators and multiply the denominators, then simplify if needed. Example x = x 5 = 20 = 10 x =

Multiply Fractions and Whole Numbers

To multiply a fraction and whole number, convert the whole number to a fraction, then multiply as normal. What is 14 as a fraction?

Multiply Fractions and Whole Numbers To multiply a fraction and whole number, convert the whole number to a fraction, then multiply as normal. Example = 1

Multiply Fractions and Whole Numbers To multiply a fraction and whole number, convert the whole number to a fraction, then multiply as before. Example 1 7 x 14 x = x 1 = 7 = 2 x =

Multiply Fractions and Whole Numbers

When multiplying a fraction by a whole number, the order of the factors does not change the product. This is true for any numbers and is an example of the Commutative Property. Example 2 2 x 5 = 5 x 2

Multiply Fractions and Whole Numbers

If the numerators and denominators have a common factor you can simplify before multiplying.

Multiply Fractions and Whole Numbers

Write a problem involving the multiplication of a whole number and fraction with a product that is between 8 and 10. Do this on your own.

Multiply Fractions and Whole Numbers Write a problem involving the multiplication of a whole number and fraction with a product that is between 8 and 10. Sample: x 4 = 4 =9

Multiply Fractions and Whole Numbers Find Noah’s mistake and correct it.

Multiply Fractions and Whole Numbers x 8= 4 =6 Find Noah’s mistake and correct it. He multiplied both top and bottom by 8.

Essential Question

Multiply Fractions and Whole Numbers Agenda Notes Homework – Homework Practice 4.2 Show all work and circle all answers Due Friday, Oct 23 Mid-Chapter 4 Quiz Friday, Oct 30