Ratios & Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing the relative size of one quantity to another.

Front

How can ratios be expressed?

Back

Ratios can be expressed in three ways: as a fraction (e.g., 1/2), with a colon (e.g., 1:2), or in words (e.g., '1 to 2').

Front

What does 'equivalent' mean in the context of ratios?

Back

Equivalent means equal; two ratios are equivalent if they represent the same relationship between quantities.

Front

What is a ratio table?

Back

A ratio table is a table that displays pairs of numbers that form equivalent ratios.

Front

If 3 apps cost $9, how much do 7 apps cost?

Back

$21, because the cost per app is $3 (9/3), so 7 apps cost 7 x 3 = $21.

Front

What is the missing number in the ratio table: 1:2, 2:4, ?, 4:8?

Back

The missing number is 3, as the ratios are equivalent (1:2 = 2:4 = 3:6 = 4:8).

Front

What is the purpose of using ratio tables?

Back

Ratio tables help to visualize and understand the relationships between different quantities and to find equivalent ratios.

Front

How do you find equivalent ratios?

Back

To find equivalent ratios, you can multiply or divide both terms of the ratio by the same non-zero number.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, and equivalent ratios correspond to equivalent fractions.

Front

What is an example of a real-world application of ratios?

Back

Ratios are used in recipes to compare the amounts of different ingredients, such as 2 cups of flour to 1 cup of sugar.