IN.6.1. Number Sense
Students compare and order positive and negative integers, decimals, fractions, and mixed numbers. They find multiples and factors.
6.1.6 Use models to represent ratios.
6.1.7 Find the least common multiple and the greatest common factor of whole numbers. Use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form for a fraction).
Students solve problems involving addition, subtraction, multiplication, and division of integers. They solve problems involving fractions, decimals, ratios, proportions, and percentages.
6.2.6 Interpret and use ratios to show the relative sizes of two quantities. Use the notations: a/b, a to b, a:b.
6.2.7 Understand proportions and use them to solve problems.