Adding and Subtracting Fractions with Unlike Denominators

Addition

100

1/2 + 1/3

5/6

200

3/4 + 2/3

1 5/12

(17/12)

300

3/5 + 2/4

1 2/20 or 1 1/10

(22/20)

400

2/6 + 2/4

10/12 or 5/6

500

3/7 + 3/8

45/56

Subtraction

100

2/3 - 1/2

1/6

200

2/3 - 1/4

5/12

300

5/6 - 3/4

1/12

400

7/8 - 1/3

13/24

500

5/9 - 3/7

8/63

Surprise

100

write three hundred sixty-four thousand, nine-hundred seventy-five in standard (number) form

364,975

200

623 x 42

26,166

300

837 / 3

279

400

121 / 6

20.166666 (goes on forever)

500

What's the difference between a homophone and a homograph?

Homophone = spelled differently (BUILT DIFFERENT!)

Homograph = spelled the same

With a Mixed Number

100

1 1/2 - 1/3

1 1/6

200

1 4/5 - 2/3

1 2/15

300

2 2/3 - 1/7

2 11/21

400

1 1/4 - 3/8

7/8

500

1 2/6 - 3/4

7/12

Mrs. Cunningham Trivia (Hard!)

100

List three foods Mrs. Cunningham likes

I'll let you know

200

What grade was Mrs. Cunningham in when she broke her arm?

Kindergarten

300

What was Mrs. Cunningham going to school for BEFORE she decided to become a teacher?

Physical Therapy

400

Who does Mrs. Cunningham want to win the National Championship?

(Notre Dame or Ohio State?)

NOTRE DAME!!!

500

Is Mrs. Cunningham the oldest, youngest, or middle child?

Oldest