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# Comparing rational numbers

Comparing Rational Numbers.

## Want to join the conversation?

• Question: How does Sal put his screen like that and change the colors and stuff and how does he write SO good with a mouse. Like I try and it's just awful.
• Me three!
But he does it on a tablet, that's why it looks so neat. And he probably uses a touch screen pen or something.
• Is "zero" is a Rational number?

Is "zero" Is Negative or Positive?

• One characterization of a rational number is that it can be written as a ratio of integers. Since the number zero can be expressed as 0/1 (among other ratios) it is considered a rational number.

Zero is considered neither positive nor negative. It is "neutral" with respect to it's sign which is the reason why it is the only real number for which a=-a, i.e., the number equals it's opposite.
• what do you mean by the consept of the equation
• is there a way without a number line
• Yes, a number line makes it a lot less confusing
• Wouldn't you divide 21 from 12 instead because 21 is the numerator of the fraction so you would be dividing from 12 which is the denominator.
• why dont they give me more help with the math.
• how do i compare integers and rational numbers
• What IS a rational number? Is it a negative number?