Add and Subtracting

• 4/5
• 4/10
• 2/5
• 5

What must you have to add and subtract fractions?

• Common numerators

• Different numerators

• Different denominators

• Common denominators

What is the addition equation for this model?

To add or subtract, two fractions must have...

• a monkey.

• unlike terms.

• common denominators.

• the same numerators.

Is this a correct answer?

• Yes, the student correctly added.

• No, you cannot add unlike denominators

• No, 5 + 7 is not 12

• No, 2 + 3 is not 5

What is the difference of these fractions in lowest terms?

To find the sum, you need to...

• add

• subtract

• multiply

• divide

What is the difference of these fractions in lowest terms?

• 2/4

• 0

• 0/4

• 1/2

Choose the correct equation that matches the word sentence below: 5 more than a number y is -2