section_path: Arithmetic with fractions
section_name: Arithmetic with fractions
paragraph_text: Arithmetic with fractions
  
  Like whole numbers, fractions obey the commutative, associative, and distributive laws, and the rule against division by zero.
  
  Mixed-number arithmetic can be performed either by converting each mixed number to an improper fraction, or by treating each as a sum of integer and fractional parts.