Unit 2 Flashcard 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 does it mean if a recipe calls for a ratio of 2:1 for ingredients?

Back

It means for every 2 parts of the first ingredient, you need 1 part of the second ingredient.

Front

If there are 4 apples for every 3 oranges, what is the ratio of oranges to apples?

Back

The ratio of oranges to apples is 3:4.

Front

How can you express the ratio of 10 lychees to 4 limes in simplest form?

Back

The simplest form is 5:2.

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

If a recipe requires 8 bananas for 16 pancakes, how many bananas are needed for 32 pancakes?

Back

16 bananas are needed for 32 pancakes.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per unit'.

Front

How do you find a missing value in a ratio?

Back

You can use cross-multiplication to find a missing value in a ratio.

Front

If the ratio of boys to girls in a class is 3:5, how many boys are there if there are 20 girls?

Back

There are 12 boys in the class.