It's the largest positive integer that will divide evenly with no remainder into both of them.
If you divide a rational expression by another rational expression, you will again get a rational expression.
factor
When the only common factor between numerator and denominator is 1.
Just write ANY fraction, with a polynomial in the numerator, and a polynomial in the denominator.
When the numerator and denominator are coprime - ie have no factor in common other than 1.
If you divide a rational expression by another rational expression, you will again get a rational expression.
rational expression
rational expression
When the denominator is a factor of the numerator. If there is 2x in the numerator and denominator these terms cancel.
You didn't include the expression below. Without that that, we'd only be guessing.
You divide the numerator of the rational expression by its denominator.
factor
When the only common factor between numerator and denominator is 1.
To reduce a fraction to its lowest terms divide the numerator and the denominator by their highest common factor
Just write ANY fraction, with a polynomial in the numerator, and a polynomial in the denominator.
Both the numerator and denominator are polynomials
When the numerator and denominator are coprime - ie have no factor in common other than 1.