Week 14 Multiplying Fractions

The math club has 40 members. 1/8th of the members are fourth graders and the rest are fifth graders. How many math club members are fifth graders?

• 10
• 5
• 320
• 8

In which equation is the product greater than 5?

• 3/4 x 5
• 1/12 x 5
• 3/2 x 5
• 9/10 x 5

Each can on a shelf has a mass of 3/5 kilogram. What is the total mass of 9 of these cans?

• 12/45
• 27/45
• 12/5
• 27/5

At Greene College, 5/8 of the students are enrolled in an art class. Of the students enrolled in an art class, 3/5 are enrolled in a painting class. What fraction of the students at Greene College are enrolled in a painting class?

(a)  

Juan operates an orange juice stand. On Monday he used 4/5 of a bag of oranges. On Tuesday he used 2/5 as many oranges as on Monday. How many bags of oranges did Juan use on Tuesday?

(a)  

Which model shows 1/2 x 1/3 and what is the answer?

• The image on the left and 2/6
• The image on the left and 1/6
• The image on the right and 2/6
• The image on the right and 1/6

What is 1/2 x 5?

• 5/2
• 5/10
• 1/10
• 2

What is 3/4 x 5/6

• 15/18
• 15/24
• 15/6
• 8/10

What is each part of a fraction called? (The top number and the bottom number). What do they each tell you about the fraction? "The top number is called the _____________. It tells you ______________. The bottom number is called _____________, it tells you ______________________."

When you multiply a whole number by a fraction, the product (answer to a multiplication question) is less than the whole number you started with. Why? "The product of a fraction and a whole number is less than a whole number because..."