Ratios: Part-Part and Part-Whole

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

What does part-part ratio mean?

Back

A part-part ratio compares two parts of a whole, showing the relationship between them.

Front

What does part-whole ratio mean?

Back

A part-whole ratio compares a part of a whole to the entire whole, showing how much of the whole is made up by that part.

Front

If Chemical 1 and Chemical 2 are mixed in a ratio of 4 to 5, how much Chemical 1 is needed for 35 liters of Chemical 2?

Back

28 liters.

Front

What is the ratio of students to boys if there are 5 girls and 6 boys?

Back

11:6.

Front

What is the ratio of girls to students if there are 5 girls and 6 boys?

Back

5:11.

Front

If Mrs. Corbeil makes 1 sage candle for every 3 pine candles, how many sage candles will she have after making 40 candles?

Back

10 sage candles.

Front

How do you calculate the total parts in a ratio of 4 to 5?

Back

Add the parts together: 4 + 5 = 9 parts.

Front

In a ratio of 4 to 5, what fraction of the total mixture does Chemical 1 represent?

Back

Chemical 1 represents 4/9 of the total mixture.

Front

In a ratio of 4 to 5, what fraction of the total mixture does Chemical 2 represent?

Back

Chemical 2 represents 5/9 of the total mixture.