Fraction x Fraction
What is
2/3 x 4/5
8/15
is 2/3 x 4/5
greater than, less than, or equal to 4/5
less than
Create a value for N
n x 1/3= 2/3
n=2
Carlos has 3/4 lb of pasta salad and uses 2/3
How much does he use?
6/12 or 1/2
What does it mean to scale a number?
To make it bigger or smaller by multiplying
What is
5/3 x 4/5
20/15 or 1 5/15 or 1 3/5
is 3/3 x 4/5
greater than, less than, or equal to 4/5
equal to
Liam wants
N x 1/3 > 1/3
Should n be greater than or less than 1?
Greater than 1
Ethan pours 3 liters of juice and drinks 2/5
How much juice does he drink?
6/5 or 1 1/5
This bar has a length of 12 units.
☐☐☐☐☐☐☐☐☐☐☐☐
This bar shows the length of 12 units scaled.
☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐☐
Write an equation to describe how the bar with a length of 12 units is scaled.
12x3=36
What is 3/3 x 4/5
12/15 or 4/5
What happens when you multiply a number by a fraction less than 1
The product gets smaller
Liam writes the multiplication expression n x 1/3. He wants the product of his expression to be greater than 1/3. Choose 3 values for n that would result in a product greater than 1/3
Accept all answers greater than 1
Maya rides 5/6 mile Saturday and 2 1/2 times as far on Sunday.
How far did she ride on Sunday?
25/12 or 2 1/12
10 x 1/2= 5This bar has a length of 10 units.
☐☐☐☐☐☐☐☐☐☐
This bar shows the length of 10 units scaled.
☐☐☐☐☐
Write an equation to describe how the bar with a length of 10 units is scaled.
10 x 1/2= 5
Which is the greater product
2/3 x 4/5
or
4/5 x4/5
4/5 x 4/5
What happens when you multiply by a fraction greater than 1?
The product gets bigger
Explain WHY multiplying by a number greater than 1 increases the product.
You are taking more than one whole group, so the value increases.
Sofia lives 6/8 mile away and walked 3/5 of the way.
How far did she walk?
18/40 or 9/20
This bar has a length of 12 units.
☐☐☐☐☐☐☐☐☐☐☐☐
This bar shows the length of 12 units scaled.
☐☐☐
Write an equation to describe how the bar with a length of 12 units is scaled.
12x 1/4 = 3
What is
8/3 x 4/5
32/15 or 2 2/15
True or False: Multiplying by 1 changes the value.
False
Create a value for N
n x 12/108= 36/108
n=3
Noah has 7/8 yard of ribbon and uses 3/4 for a gift.
How much ribbon is left?
21/32
Write and draw an equation showing 12 scaled by 2/3.
12 x 2/3= 8
☐☐☐☐☐☐☐☐☐☐☐☐
scaled
☐☐☐☐☐☐☐☐