Unit 4 Jeopardy - Fractions!!! :)

Adding Mixed Numbers

100

1 3/10 + 4 5/10 =

5 8/10

200

3 1/12 + 9 8/12 = ?

12 9/12 OR 12 3/4

300

5 2/3 + 6 1/3 = ?

12 not 11 3/3

400

6 2/5 + 8 4/5 = ?

15 1/5 not 14 6/5

500

12 5/7 + 9 4/7 = ?

22 2/7 not 21 9/7

Subtracting Mixed Numbers

100

6 4/5 - 3 2/5 = ?

3 2/5

200

12 11/12 - 5 6/12 = ?

7 5/12

300

7 1/3 - 5 = ?

2 1/3

400

8 - 4 2/5 = ?

3 3/5

500

5 1/4 - 3 3/4 = ?

1 2/4 or 1 1/2

Multiplying Fractions by a Whole Number

100

3 x 1/5 = ?

3/5

200

7 x 1/3 = ?

7/3 OR 2 1/3

300

8 x 2/5 = ?

16/5 OR 3 1/5

400

6 x 1/2 = ?

6/2 OR 3

500

Write the answer as a whole number:

12 x 6/9

72/9 = 72 divided by 9 = 8

Comparing Fractions

100

1/2 ______ 3/4

2/4 < 3/4

Denominator: 4

Multiplied the numerator and denominator of 1/2 by 2 ONLY since 4 is a multiple of 2.

LESS THAN

200

1/2 ______ 4/5

5/10 < 8/10

Denominator: 10

Multiplied the numerator and denominator by 2

LESS THAN

300

2/4 _____ 5/8

4/8 < 5/8

Denominator: 8

Multiplied the numerator and denominator 2 to get 8 as the common denominator. 

LESS THAN

400

3/7 _______ 5/9

Benchmark: 3/7 < 1/2    and    5/9 > 1/2 

so 3/7 < 5/9

LESS THAN

500

3/16 ________ 4/19

Common Denominator: 16 x 19 = 304

57/304 < 64/304

LESS THAN

Equivalent Fractions

100

Are 1/2 and 10/18 equivalent? Why or Why not?

No, because 1/2 = 9/18.

9/18 is not equal to 10/18.

200

Are 3/4 and 16/20 equivalent? Why or why not?

NO, because 3/4 = 15/20.

15/20 is not equal to 16/20.

300

Are 3/7 and 4/8 equivalent? Why or why not?

NO, 3/7 = 24/56 

and 4/8 = 28/56.

24/56 is not equal to 28/56.

400

Are 2/5 and 40/100 equivalent fractions? Why or why not?

YES, 2/5 x 20/20 = 40/100.

We multiplied the numerator and the denominator by the same number (20).

500

Is 3 and 1/2 equivalent to 28/8? Why or why not?

Yes! 3 1/2 = 7/2 

7/2 x 4/4 = 28/8

OR 

Write 28/8 as 3 and 4/8 which is equal to 3 and 1/2