Adding Fractions Common Denominators

What is 7/8 + 4/16 equal to?

• 11/24

• 18/16 = 1 2/16

• 3/8

• 11/16

Which of the following would be the new fractions for finding common denominators for 3/4 and 2/6?

• 9/12 and 4/12

• 6/8 and 4/12

• 9/12 and 6/18

• 2/12 and 6/12

When adding or subtracting fractions with unlike denominators, what is the first step?

• Add the numerators

• Add the denominators

• Find a common denominator

When adding and subtracting fractions, what needs to be the same?

• the numerator

• the denominator

• nothing

• everything

When adding fractions with like denominators, the denominators....

• stay the same

• are added together

How can you find a common denominator?

• Add the denominators together

• Pick your favorite number

• Find a common multiple for the two denominators

What number could be a common denominator for these two fractions?
2/3   and   3/4

• 3

• 4

• 7

• 12

What number could be a common denominator for these two fractions?
1/5   and   5/6?

• 30

• 11

• 6

• 5

After changing the denominator, what do you need to do to the numerator?

• Nothing

• Multiply the numerator by the same number as the denominator

• Double it