topic badge

8.05 Multiply fractions by whole numbers

Interactive practice questions

We are going to work out how to represent $3\times\frac{4}{5}$3×45 on the number line.

a

First mark $\frac{4}{5}$45 on the number line.

0123
b

Now mark $3\times\frac{4}{5}$3×45 on this number line.

0123
Easy
1min

We are going to work out how to represent $2\times\frac{7}{8}$2×78 on the number line.

Easy
1min

We are going to work out how to represent $2\times\frac{7}{4}$2×74 on the number line.

Medium
1min

We are going to work out how to represent $3\times\frac{3}{5}$3×35 and $9\times\frac{1}{5}$9×15 on the number line.

Medium
2min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account

Outcomes

5.NF.B.4

Apply and extend previous understandings of multiplication to multiply a fraction by a whole number and a fraction by a fraction.

5.NF.B.4a

A. Interpret the product (a/b) x q as a parts of a partition of q into b equal parts. For example, use a visual fraction model to show (2/3) x 4 = 8/3, and create a story context for this equation.

5.NF.B.4b

B. Interpret the product of a fraction multiplied by a fraction (a/b) x (c/d). Use a visual fraction model and create a story context for this equation. For example, use a visual fraction model to show (2/3) x (4/5) = 8/15, and create a story context for this equation. In general, (a/b) x (c/d) = ac/bd.

What is Mathspace

About Mathspace