Multiply Fractions

To multiply fractions you

• look to see if you can cross cancel then multiply straight across

• use cross products

• multiply the numerators and keep the denominators the same

• flip the second fraction then multipy

• 5/6
• 3/15
• 3/8
• 2/15

To divide fractions you

• change it to multiplication

• cross cancel

• flip the first fraction then multiply

• flip the second fraction then multiply

Which fraction operation(s) are you allowed to cross-cancel?

• Adding

• Subtracting

• Multiplying

• Dividing

Find the product. 

• 2/14

• 1/49

• 2/7

• 1/14

Which equation matches the model?

• 4/6 x 2/6 = 8/36 sq units

• 5/6 x 2/6 = 10/36 sq units

• 5 + 5 = 10 sq units

• 2/5 x 5/6 = 10/30

Multiply and answer in simplest form.

• 3/40

• 4/40

• 3/5

• 5/24

Multiply and answer in simplest form.

• 1/21

• 4/84

• 1/10

• 1/28

How do you multiply fractions?

• Criss-cross

• Straight across

• Top-to bottom

• You can't

Can you cross- cancel before multiplying these fractions?

• Yes, you can cancel 4 and 11

• Yes, you can cancel 3 and 12

• Yes, you can cancel all of the numbers

• No, you cannot cancel 

Answer explanation

Yes, you can cross-cancel before multiplying. The 3 in the numerator of the first fraction can be canceled with the 12 in the denominator of the second fraction, simplifying the multiplication.