Adding Fractions Review

Simplest Form

100

Simplify: 6/12

1/2

200

Simplify: 16/20

4/5

300

Simplify: 42/49

6/7

400

Simplify: 18/81 

2/9 

500

Simplify: 132/144

11/12

Greatest Common Factor

100

GFC for 4 and 12:

4

200

GCF: for 14 and 28

14

300

GCF for: 36 and 54

9

400

GCF for: 21 and 84

21

500

GCF for: 66 and 32

2

Adding Fractions w/ Like Denominators

100

1/4 +1/4 

1/2

200

2/6 + 5/6

7/6 (1 1/6)

300

3/5 + 7/5 

2    (10/5)

400

11/21 + 3/21 

2/3 (14/21)

500

12/100 +34/100

12/25   (48/100)

Adding Fractions with Unlike Denominators

100

1/2 + 1/3 

3/6 + 2/6    5/6

200

3/5 + 4/10 

6/10 + 4/10 = 1 (10/10)

300

6/7 + 5/9

54/63 + 35/63 = 89/63  (1 26/63)

400

4/11 + 7/8

32/88 + 77/88 = 109/88 (1 21/88)

500

1/13 + 1/15

15/195 +13/195 = 28/195 

Fraction Rules:

100

In order to add two fractions, they must have the same ________________. 

Denominator

200

When you adding fractions, you only add the ______________. 

Numerator

300

When simplifying fractions, you need to identify the __________________. 

Greatest Common Factor

400

When making a common denominator, you need to find the _______________. 

Least Common Multiple

500

You can all make a common denominator by multiplying one fraction by the opposite ______________. 

Denominator