Review 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:b'.

Front

How do you find the ratio of a part to the whole?

Back

To find the ratio of a part to the whole, divide the part by the total and express it in simplest form.

Front

What is an equivalent ratio?

Back

Equivalent ratios are two or more ratios that represent the same relationship between numbers.

Front

How do you simplify a ratio?

Back

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

Front

If there are 14 cakes, 12 donuts, and 4 cupcakes, what is the total number of items?

Back

The total number of items is 14 + 12 + 4 = 30.

Front

What is the ratio of donuts to total items if there are 12 donuts and 30 total items?

Back

The ratio of donuts to total items is 12:30, which simplifies to 2:5.

Front

How do you calculate the cost per item?

Back

To calculate the cost per item, divide the total cost by the number of items.

Front

If Mikey spent $3.75 for 3 pounds of granola, what is the cost per pound?

Back

The cost per pound is $3.75 ÷ 3 = $1.25.

Front

What is the formula to find words typed per minute?

Back

The formula is: Words per minute = Total words ÷ Total minutes.

Front

If Noel can type 408 words in 4 minutes, how many words can he type per minute?

Back

Noel can type 408 ÷ 4 = 102 words per minute.