What kind of numbers are rational numbers?
Are all integers called rational numbers also?
Rational numbers are basically any number, positive or negative, that can be written as a fraction. Repeating decimals are rational numbers.
Which of these are rational numbers?
3 -1.7777 ∞ 2/3 2.8 pi 1.567 repeating
Answer: All are rational numbers except infinite and pi.
Order these rational numbers from least to greatest:
-1.2 -0.1 -3/8 -1.01 -2/11 -1/6
How did you find out the correct order?
There are 2 strategies that mathematically prove the order of these numbers.
1) Change the numbers so that you can compare them using common denominators.
2) Change the numbers into decimals by dividing the fractions (top goes in the house).
Answer: -1.2 -1.01 -3/8 -2/11 -1/6 -0.1