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MODULE 2.The Meaning and Equivalent Forms of Proper Fractions. The Meaning and Equivalent Forms of Improper Fractions and Mixed Numbers. Addition and Subtraction of Fractions. Multiplication and Division of Fractions. Operations with Mixed Numbers. Prime Factoring and Lowest Common Denominators. MODULE 3.The Meaning and Names of Decimal Numbers. Addition and Subtraction of Decimal Numbers. Multiplication of Decimal Numbers. Division of Decimal Numbers--Whole Number Divisors. Division of Decimal Numbers-- Decimal Number Divisors. MODULE 4Converting Percents to Fractions and Decimal Numbers. Finding a Percent of Number or Quantity. Converting Fractions and Decimal Numbers to Percents. Using Percents to Express Comparisons. Percents Larger Than 100% and Smaller Than 1%. Ratio and Proportion.