Comparing Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between quantities, even if the numbers are different, such as 1:2 and 2:4.

Front

If a recipe requires 2 cups of flour for 3 batches of cookies, how much flour is needed for 9 batches?

Back

6 cups of flour.

Front

What is the ratio of 5 apples to 10 oranges?

Back

The ratio is 1:2.

Front

How can you find a missing value in a ratio?

Back

You can use cross-multiplication or set up a proportion to find the missing value.

Front

What is the ratio of 3 red marbles to 5 blue marbles?

Back

The ratio is 3:5.

Front

If 4 pencils cost $2, how much do 10 pencils cost?

Back

$5.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second quantity is the denominator.

Front

How do you compare two ratios?

Back

To compare two ratios, convert them to fractions and find a common denominator or cross-multiply.