Adding and Subtracting Fractions Review

Vocabulary

100

A number formed by a whole number and a fraction

Mixed Number

200

changing a number to its closest whole number in order to make multiplication easier

Rounding

300

the form used when the greatest common factor of the numerator and the denominator is 1

Simplest Form

400

fractions with different denominators

Unlike Fractions

500

not an exact answer

Estimate

Rounding

100

Round  to the nearest whole number.

1 5/6

2

200

Round to the nearest whole number.

7 1/8

7

300

Round to the nearest whole number.

10 7/9

11

400

What is the best estimate?

4 9/10 + 2 1/3 = 

7

500

What is the best estimate?

12 1/6- 3/4 = 

11

Adding and Subtracting Like Fractions

100

2/5 + 1/5 =

3/5

200

11/12 - 1/12 =

5/6

300

5/8 + 3/8 = 

1

400

13/24 - 1/24=

1/2 

500

13/100 + 12/100=

1/4

Adding and Subtracting Unlike Fractions

100

8/9 - 1/3 = 

5/9

200

1/2 - 1/6= 

1/3

300

4/5- 1/2= 

3/10

400

3/8 - 1/10 =

11/40

500

9/12 + 1/4 = 

1

Mixed Numbers

100

3 1/3 + 1 1/3= 

4 2/3

200

4 3/8 + 2 1/4= 

6 5/8 

300

9 3/4- 6 9/12=

3

400

5 3/4 + 6 1/8=

11 7/8

500

6 3/8- 2 5/8=

3