Arithmetic

Arithmetic

Greatest common divisor

Least common multiple

Common fractions

            Definition and examples of common fractions

            Proper and improper fractions

            Mixed fractions

            The main property of a fraction. Reduction of fractions

Addition and subtraction of common fractions

            Addition and subtraction of fractions with the same denominators

             Reducing fractions to a common denominator

             Addition and subtraction of fractions with different denominators

             Addition and subtraction of mixed fractions

Multiplication and division of common fractions

             Multiplying a fraction by an integer

             Multiplication of common fractions

             Division of common fractions