The Number SystemApply and extend previous understandings of operations with fractions to add, subtract, multiply, and divide rational numbers.2Apply and extend previous understandings of multiplication and division and of fractions to multiply and divide rational numbers.bUnderstand that integers can be divided, provided that the divisor is not zero, and every quotient of integers (with non-zero divisor) is a rational number. If p and q are integers, then –(p/q) = (–p)/q = p/(–q). Interpret quotients of rational numbers by describing realworld contexts.