What are the excluded values? - 7z/4z+1

Excluded values are values that will make the denominator of a fraction equal to 0. You can't divide by 0, so it's very important to find these excluded values when you're solving a rational expression. Keywords: problem rational expression fraction algebraic fraction polynomial excluded value zero denominator solve zero denominator numerator Background Tutorials Fraction Basics What's a Numerator and What's A Denominator? What's a Numerator and What's A Denominator? Numerators and denominators are the key ingredients that make fractions, so if you want to work with fractions, you have to know what numerators and denominators are.