Final answer:
A ratio is a comparison of two quantities that describe the same attribute. It can be written as a fraction, with a colon, or with the word 'to'. Ratios are used to express relationships between different quantities and can be found in various fields such as mathematics, science, and everyday life.
Step-by-step explanation:
A ratio is a comparison of two quantities that describe the same attribute. It can be written as a fraction, with a colon, or with the word 'to'. For example, the ratio 2:3 represents the comparison of two quantities where one quantity is double the other.
Ratios are used to express relationships between different quantities and can be found in various fields such as mathematics, science, and everyday life. They help us understand and compare the relative sizes or quantities of different things.
Some other examples of ratios include 1:4, 5/8, and 3 to 7.