Ratios

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

How do you express a ratio?

Back

Ratios can be expressed in three ways: as a fraction (a/b), with a colon (a:b), or with the word 'to' (a to b).

Front

What is a part-to-part ratio?

Back

A part-to-part ratio compares two different parts of a whole.

Front

What is a part-to-whole ratio?

Back

A part-to-whole ratio compares a part of the whole to the entire whole.

Front

If you buy 2 items and get 1 free, what is the ratio of items bought to free items?

Back

The ratio is 2:1.

Front

In a bag of 20 candies, if 5 are red, what is the part-to-whole ratio of red candies?

Back

The part-to-whole ratio is 5:20 or simplified to 1:4.

Front

How do you calculate the number of free items received in a promotional offer?

Back

Divide the number of items purchased by the promotional ratio (e.g., for every 2 bought, divide by 2).

Front

What is the ratio of 8 to 5 expressed as a fraction?

Back

The ratio 8:5 can be expressed as the fraction 8/5.

Front

If a worker earns $7 per hour, what is the ratio of earnings to hours worked for 8 hours?

Back

The ratio of earnings to hours worked is $56:8, which simplifies to 7:1.

Front

What is the significance of understanding ratios in real-life applications?

Back

Understanding ratios helps in making comparisons, understanding proportions, and solving problems in finance, cooking, and other areas.