Adding and Subtracting Fractions Review

Vocabulary

100

What is a fraction?

 A part of a whole 

200

The numerator of a fraction represents...

The part of the whole being counted.  

300

The denominator of a fraction represents...

The number of parts the whole is broken up into. 

400

When a fraction is as small as it can be it is in...

Simplest form 

500

This tells the part of the whole that represents one piece and always has a denominator of 1. 

Unit fraction 

Writing Fractions as Sums

100

Write 3/4 as a sum of unit fractions?

1/4 + 1/4 + 1/4

200

Write 2/7 as the sum of unit fractions.

1/7 + 1/7

300

Write 10/12 as the sum of unit fractions.

1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 +1/12 + 1/12 + 1/12

400

Write 4/8 + 2/8 as the sum of unit fractions.

1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8 

500

Write 3/10 + 2/10 + 2/10 as a sum of unit fractions.

1/10 + 1/10 + 1/10 + 1/10 + 1/10 + 1/10 + 1/10 

Adding Fractions

100

1/4 + 2/4 = 

3/4

200

3/12 + 8/12 =

11/12

300

3/8 + 1/8=

4/8 or 1/2

400

2/6 + 2/6 =

(I want the answer in simplest form only!)

2/3

500

1/12 + 7/12 = 

(answer in simplest form only)

2/3

Subtracting Fractions

100

5/6 - 4/6=

1/6

200

7/10 - 4/10 =

3/10

300

9/12 - 5/12= 

(Simplest form only!!!)

1/3

400

3/4 - 1/4=

(Simplest form!!)

1/2

500

9/10 - 5/10=

(Simplest form!!!)

2/5

Grab Bag

100

Tell whether these fractions are equal or not equal.

3/4 O  7/8

not equal 

200

Make 3 equivalent fractions for 1/3

2/6  3/9  4/12  5/15  6/18 ...

300

Put each fraction into simplest form:

6/10      5/15     12/24 

3/5   1/3   1/2  

400

Put the fractions over a common denominator.

5/8  and 3/4 

5/8 and 6/8 

500

Order the fractions from least to greatest.

5/6   4/5  3/10

3/10, 4/5, 5/6