Fractions

Fractions

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When Adding 2 fractions with the same Denominator, jist add the numerators together.

For example, 1/4 + 4/4 = 5/4..  Try it out on the next slides.

Multiple Choice

What is the answer to the math problem. 2/35 + 5/35 =

• 7/35

• 1/5

• 7/70

• 1/10

Multiple Choice

What is 3/44 + 8/44 =

• 11/88

• 11/44

• 1/4

• 1/8

Multiple Select

How do you feel about adding fractions with the same denominator.

• Great

• Good

• Ok

• Not so good.

                 DIVIDING FRACTIONS

When dividing fractions, remember this mnemonic device. KCF. Keep, change, flip. You keep the 1st number, flip the division sign to a multiplication sign, and you flip the 3rd fraction. Try it out!!!!!

Multiple Choice

What is 3/2 / 4/7

• 2 5/8

• 2 6/8

• 2 8/9

• 3 5/7

Multiple Choice

What is 3/6 divided by 6/5

• 15/35

• 15/37

• 15/38

• 15/36

Open Ended

How do you feel about dividing fractions?

When adding fractions with different denominators, change the denominator to lcm of both the denominators. For example, 6 and 8 would be 24. 3 and 6 would be 6. After that, multiply the numerator by the same number you did to the denomiantor. For instance, 3/4 + 5/6 would be 9/12 + 10/12. Which is equal to 19/12.

Multiple Choice

3/4 + 6/8

• 36/24

• 33/22

• 31/22

• 30/29

Multiple Choice

2/4 + 3/6

• 1

• 12/12

• 11/11

• 10/8

Poll

How do you feel about fractions.

• Great 100%

• Good 75%

• OK 50%

• Bad 25%

Thank you for Participating.