Multiply Fractions by Fraction and Fraction by Whole Numbers

When multiplying fractions, you -

• multiply the numerators & multiply the denominators

• keep change flip

• find common denominators

• do not have to reduce

How do I MULTIPLY fractions?

• Find a common denominator

• Multiply straight across

• Keep change flip

What is the product of 3/7 x 9?

• 7/27

• 13/7

• 3/63

• 27/7

• 3/8
• 3-1/8
• 1/24
• 4/8

2 x ¼ =

• ²/₄

• ⁷/₄

• ½

• ⁸/₄

Find the product.

• 3/50

• 30/5

• 6

• 1  1/5

• 5/10 or 1/2

• 5/10 or 50/10

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

• 1 ²/₃
• 1 ¹/₆
• ¹⁰/₁₂
• 5

Find the product:

Hint: Change 10 as 10/1, multiply and simplify

• 3/50

• 30/5

• 6

• 1  1/5