Rational Numbers/ LCM and GCF

Compare rational Numbers.

100

Use a number line to compare the following rational numbers. 

1 1/2  ___   1.75

Use a number line to compare the following rational numbers. 

1 1/2  <   1.75

200

Use a number line to compare the following rational numbers. 

1/4 ___   0.75

Use a number line to compare the following rational numbers. 

1/4 = 0.75

300

Use a number line to compare the following rational numbers. 

- 1 3/4 ___  - 2.5

Use a number line to compare the following rational numbers. 

- 1 3/4  >  - 2.5

400

Use a number line to compare the following rational numbers. 

- 1.5 ___  - 1 1/2

Use a number line to compare the following rational numbers. 

- 1.5 =  - 1 1/2

500

Use a number line to compare the following rational numbers. 

1/4 ___  0.65

Use a number line to compare the following rational numbers. 

1/4 <  0.65

Inequalities

100

Write two numbers that will make the following inequality correct. 

3.55 < 3. __ 5

6, 7, 8 or 9

200

Write two numbers that will make the following inequality correct. 

-0.72 > - 0.7___

3, 4, 5, 6, 7, 8, 9

300

Write two numbers that will make the following inequality correct. 

0.87__ < 0.90

0, 1, 2, 3,4 , 5, 6, 7, 8, 9

400

Write numbers that will make the following inequality correct. 

- 1.54 < - __. 54

0

500

Write two numbers that will make the following inequality correct. 

0.6 > 0. __

7, 8, 9

Equivalent Factions and Decimals

100

Write two equivalent fractions for the following number. 

4/12

1/3 , 12/ 36, 8/24, 20/60

200

Convert the follwing two fractions into decimals. 

a. 1/2

b. 3/4

a. 0.5 or 0.50

b. 0.75

300

Write two equivalent fractions for the following number. 

1/7

2/14, 3/21, 4/28, 5/35

400

Convert the follwing two fractions into decimals. 

a. 1/4

b. 1/5

a. 0.25

b. 0.2 or 0.20

500

Write two equivalent fractions for the following number. 

35/70

7/14, 1/2, 70/140

LCM (Multiples)

100

Find the LCM of 2 and 5

Multiples of 2

Multiples of 5

LCM

Multiples of 2: 2,4,6,8,10, 12, 14

Multiples of 5: 5, 10, 15, 20, 25

LCM: 10

200

Find the LCM of 3 and 4

Multiples of 3

Multiples of 4

LCM

Multiples of 3: 3, 6, 9, 12, 15

Multiples of 4: 4, 8, 12, 16

LCM: 12

300

Find the LCM of 15 and 45

Multiples of 15

Multiples of 45

LCM

Find the LCM of 15 and 45

Multiples of 15: 15, 30, 45, 60

Multiples of 45: 45, 90, 135

LCM: 45

400

Find the LCM of 6 and 9

Multiples of 6

Multiples of 9

LCM

Multiples of 6: 6, 12, 18, 24, 30, 36, 42

Multiples of 9: 9, 18, 27, 36, 45

LCM: 18

500

Find the LCM of 12 and 30

Multiples of 12

Multiples of 30

LCM

Multiples of 12: 12, 24, 36, 48, 60, 72, 96, 108, 120

Multiples of 30: 30, 60, 90, 120

LCM: 60

GCF (Factors)

100

Find the GCF of 20 and 15

Factors of 20: 

Factors of 15: 

GCF:

Factors of 20: 1, 2, 4, 5, 10, 20

Factors of 15: 1, 3, 5, 15

GCF:5

200

Find the GCF of 22 and 16

Factors of 22: 

Factors of 16: 

GCF:

Factors of 22: 1, 2, 11, 22

Factors of 16: 1, 2, 4, 8, 16

GCF: 2

300

Find the GCF of 45 and 54

Factors of 45: 

Factors of 54: 

GCF:

Factors of 45: 1, 5, 9, 45

Factors of 54: 1, 2, 27, 6, 9, 54

GCF:9

400

Find the GCF of 28, 36 and 40

Factors of 28: 

Factors of 36: 

factors of 40:

GCF:

Factors of 28: 1, 2, 4, 7, 14, 28

Factors of 36: 1, 2, 3, 4, 9, 12, 18

factors of 40: 1, 2, 4, 5, 8, 10, 20

GCF: 4

500

Find the GCF of 27, 45 and 15

Factors of 27: 

Factors of 15: 

factors of 45:

GCF:

Factors of 27: 1, 3, 9, 27

Factors of 15: 1, 3, 5, 15

factors of 45: 1, 3, 5, 9, 15, 45 

GCF: 3