Chapter 1 Section 1.3 Properties of and Operations with Real Numbers
Multiplying each fraction by the others denominator always gives common denominator. You can get smaller denominators by being more selective about the numbers you choose to multiply by for some fractions. Cancel 3 and 5
PropertyRuleAlgebra example Commutative for Addition Commutative for Multiplication Associative for Addition Associative for Multiplication Identity for Addition Identity for Multiplication Additive Inverse Multiplicative Inverse Distributive Property