Two thirds is described as already simplified because 2 and 3 have no common:
ACommon factors
BCommon digits
CCommon signs
DAny decimals
Answer & Solution
Correct answer: A. Common factors
1. The numerical case illustrates the algebraic rule.
2. A rational expression is simplified if there are no common factors.
3. Two thirds is simplified because there are no common factors of 2 and 3.
4. The same test applies to expressions with variables.
_Source: OpenStax Elementary Algebra 2e (CC BY 4.0), Ch 8 'Rational Expressions and Equations', sections 8.1-8.9_
Keep practising Rational Expressions and Equations
Browse all Rational Expressions and Equations questions for NY Regents Algebra I, or explore more Mathematics topics.
Related questions
Complete the rational rulesMatch each rational termStack the rational rulesSort the rational expression stepsPull the rope to defined or undefinedVariables make excluded values harder to spot than in numerical fractions because you cannA fraction whose numerator is itself a fraction is handled as a:Two rational expressions with denominators x and x plus 1 must first be given: