In this section, ratios and proportions are defined.
• Ratios depict the relation between two similar values with respect to the number of times the first contains the second. A ratio represents a comparison between two quantities. For example, if the ratio between apples and oranges in a fruit bowl is 3 to 2, then for every 3 applies there are 2 oranges.
• Ratios are written 3 to 2, 3:2, and 3/2.
• The difference between ratios and fractions is that fractions represent part-per-whole, and ratios represent part-per-part.
• Proportions are a comparative relation between the size, quantity, etc., of objects ...