8th- 2-Step & Rational/Irrational

What is a rational number ?

• A rational number  is a number that cannot be written as a fraction.
• A rational number is a number that can be written as a ratio or a fraction.

What type of number is π ?

• Rational
• Irrational

Which number is irrational?

• 9.6
• √45
• 3/8
• 3.4

which number is a rational number ?

• ¼
• π
• √3
• 4.232342345....

√7

• Rational 
• Irrational

√25

• Rational
• Irrational

-17.5

• Rational
• Irrational

3.141414141414...
Note- 14 is repeating

• Rational 
• Irrational 

√3  

• rational
• irrational

Which number is an irrational number?

• 2.5
• 5.72314.....
• -17
• ½