Maths: Foundation: Ratio and Proportion

Ratio and proportion involve comparing quantities and scaling values. A ratio expresses the relative sizes of two or more quantities, often simplified (e.g., 3:5). Direct proportion occurs when one quantity increases as another increases (y = kx), while inverse proportion occurs when one quantity increases as another decreases (y = k/x). Problems include dividing amounts in a given ratio, scaling recipes or maps, and solving real-life situations like speed, distance, and time. Fractional and percentage forms are commonly used. Mastery requires simplifying ratios, converting units, and applying proportional reasoning accurately across contexts.

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