A Rational number is a fraction of two integers; a rational expression is a fraction that contains at least one variable
rational and irrational
a rational number is different from a natural number because a rational number can be expressed as a fraction and natural numbers are just countinq numbers =D
-- There's an infinite number of rational numbers. -- There's an infinite number of irrational numbers. -- There are more irrational numbers than rational numbers. -- The difference between the number of irrational numbers and the number of rational numbers is infinite.
Find the arithmetic average of the two rational numbers. It will be a rational number and will be between the two numbers.
expressions don't have an equal sign and equations do
A Rational number is a fraction of two integers; a rational expression is a fraction that contains at least one variable
Both have a value
similarities and differences between ordinary fractions and rational expressions.
rational and irrational
As far as I know it's an expression because it doesn't have an equal sign. That's the main difference between expressions and equations.
An expression does not equate to anything. An equation is equal to something. Expression: x+2 Equation: x+4=2x Equivalent expressions: x+2 and 2x-2 if x=4 Equivalent equations: x+4=2x and -x+10=2x if x=4
multiplying rational expressions means multiplying two alg. rxpressions that look like fractions, Just like normal, multiply numerators and multiply denominators then reduce. Division, just like regular fractions means to invert the divisor and the multiply (as above)
Algebraic expressions are the written relations of or between variables. For example, x2, 1/x, and x + y + z are all algebraic expressions. Algebraic equations are simply algebraic expressions that equate to something. For example, x2 = 4, 1/x = y, and x + y + z = 42 are all algebraic equations. In general, one differentiates algebraic expressions from exponential, trigonometric, hyperbolic, and logarithmic expressions by requiring algebraic expressions to be confined to polynomial expressions. I've added a link regarding polynomials below.
equations have an = sign, inequalities do not
AA is not rational.
Yes, it is.