Fractions
Multiplying Fractions
Unit Fractions
Compare Fractions
Will the sum be a mixed number or whole number?
100
3  3/4 - 2/4 

3 1/4 

100

1/4 x 7

7/4 or 1 3/4

100
Which two show 2 1/3 decomposed?


A.  1/3 + 1/3

B.  6/3 + 1/3

C.  3/3 + 3/3 + 1/3

2 1/3 = 7/3


B.  6/3 + 1/3 = 7/3


C.  3/3 + 3/3 + 1/3 = 7/3

100

2/3 ___ 5/6

2/3  <  5/6 


5/6 is closer to the whole

100

0/2 + 1/2 + 2/2 = _____

Will the sum be a mixed number or whole number? 

3/2 = 1 1/2 (mixed number)

Even denominator

200

3 1/6 - 1 5/6 

1 2/6

200

3/5 x 7

21/5 or 4 1/5

200
Show how to decompose 3 1/2 into at least 2 different addends:



Total = 7/2


Numerators must add together to equal 7

200

4/5 ____ 4/3 

4/5  < 4/3  

4/3 is greater than 1 whole

4/5 is less than 1 whole

200

0/10 + 1/10 + 2/10 ... 10/10

Will the sum be a mixed number or whole number? 

Sum equals 55/10 or 5 5/10 

Mixed number with even denominator

300
2/3 + 2/3

1 1/3 or 4/3

300

1 2/3 x 4

6 2/3

300

Which is not a way to decompose 4 1/6 into unit Fractions:

A.  10/6 + 15/6

B.  1/6 + 1/6 + 1/6 + 1/6 + 20/6

C.  24/6 + 1/6 

B.  1/6 + 1/6 + 1/6 + 1/6 + 20/6 = 24/6 and not 25/6

300
1 1/3 _____ 8/6

1 1/3 = 4/3


4/3 is equal to 8/6 

4 x 2   =    8 
3 x 2         6
300

0/5 + 1/5 + 2/5 ... 5/5 

Will the sum be a mixed number or whole number? 

Sum = 15/5 or 3

Sum is a whole number since denominator is odd 

400

There are 4 gallons of water.  1 3/4 gallons are used by one class, and 1 2/4 gallons are used by another class.  How many gallons are left? 

4 - 1 3/4 - 1 2/4 or

4 - 2 1/4 = 

3/4 gallons are left 

400

2 3/4 x 2

5 2/4

400
Which way below is not a way to decompose 4 2/3?


A  10/4 + 4/3 

B.  12/3 + 2/3 

C.  9/3 + 3/3 + 2/3 


A is incorrect.  10/4 + 4/3 does not add the same units.  10 fourths + 4 thirds

400

5/2 _____ 2 1/2 

5/2  =  2 1/2 


400

0/13 + 1/13 + 2/13 + 3/13 ...13/13 


Will the sum be a mixed number or whole number? 

sum = 91/13 or 7

whole number since 13 is an odd denominator

500

I have 4 cakes.  I sell 1 whole cake in the morning, then another 2/3 of a cake in the afternoon.  How much cake is left? 

1 2/3 + ___ = 4


2 1/3 cake is left

500

There are 3/4 pounds of meat in each bag.  If there are 5 bags, how many pounds of meat are there in all? 

3/4 x 6 = 18/4 

18/4 = 4 and 2/4 

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