Multiply with Fractions and Whole Numbers

How do you multiply fractions and whole numbers?

• Keep, Change, and Flip; simplify if needed

• Change the whole number to a fraction by dividing by 1, multiply the numerators and denominators; simplify if needed

• Change the divisor to a whole number by moving the decimal to the right. Make sure you move the dividend the same amount of places

• Multiply numerators & Multiply denominators; simplify if needed

How do you multiply fractions?

• Keep, Change, and Flip; simplify if needed

• Count how many numbers are behind each decimal and add the decimal places

• Change the divisor to a whole number by moving the decimal to the right. Make sure you move the dividend the same amount of places

• Multiply straight across and simplify if needed

How do you multiply fractions with mixed numbers?

• Keep, Change, and Flip; simplify if needed

• Change the whole number to a fraction by dividing by 1, multiply the numerators and denominators

• Multiply numerators & Multiply denominators; simplify if needed

• Change each mixed number to an improper fraction, multiply the numerators and then multiply the denominators; simplify if needed

Which fraction model represents 6 x 1/3?

• A

• B

• C

• D

• 1/40
• 5  1/8
• 6  3/8
• 5/8

• 1 ²/₃
• 1 ¹/₆
• ¹⁰/₁₂
• 5

• 5/10 or 1/2

• 5/10 or 50/10

Find the product:

• 3/50

• 30/5

• 6

• 1  1/5

Lori is baking cookies. Her recipe calls for ²/₃ of a cup of milk.  Lori decides she wants to triple the recipe.  How much milk is needed?

• ²/₉

• 4 ½

• 1

• 2

2 x ¼ =

• ²/₄

• ⁷/₄

• ½

• ⁸/₄