Math Problem Statement
Solution
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Math Problem Analysis
Mathematical Concepts
Fractions
Rational Numbers
Multiplication of Fractions
Rational Number Ordering
Simplification of Expressions
Formulas
Addition of Fractions: a/b + c/d = (ad + bc) / bd
Multiplication of Fractions: a/b * c/d = (a*c) / (b*d)
Simplification of Complex Fractions
Cost Calculation Formula: Total cost = Price per unit * Quantity
Theorems
Basic properties of rational numbers and arithmetic operations
Suitable Grade Level
Grade 7
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