Fractions add and subtract review

LCM

100

What is the LCM for 5 and 10

What is 10

200

What is the LCM for 2,3,6

What is 6

300

What is the LCM for 7 and 3

What is 21

400

What is the LCM for 9 and 6

What is 18

500

What is the LCM for 4,6,8

What is 24

Addition with unlike denominators

100

1/2 + 1/4

What is 3/4

200

 1/6+ 2/3

 5/6

300

1/5 + 3/10 =

 5/10 or 1/2

400

6/12 + 2/6=

 14/12

500

2/7 +7/14

11/14

Subtracting Fractions with ulike denominators

100

1/2 - 1/4=

 1/4 

200

2/3 -1/6 

3/6

300

1/5 - 1/10= 

1/10

400

2/4 -2/8=

2/8 

500

4/6 - 1/12 = 

7/12 

Addition and Subtraction

100

3/4 + 2/3 =

17/12

200

1/4 +5/12= 

8/12

300

2/4 + 4/16

12/16

400

3/5 - 4/15= 

5/15

500

2/7- 2/21 = 

4/21

Vocab

100

What is a denominator?

The number below the line in a fraction.

200

What is a numerator?

The number above the line in a fraction.

300

What does equivalent mean?

Equal in value or the same in value.

400

What is a common denominator?

When the bottom number of the fraction is the same for both fractions.

500

What does LCM stand for?

Least Common Multiple