Decimals, Ratios, Unit Rates, Part and Whole

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part from the fractional part.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator (top number) by the denominator (bottom number).

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

How do you simplify a ratio?

Back

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

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.

Front

How do you find the unit rate from a total cost and quantity?

Back

To find the unit rate, divide the total cost by the quantity.

Front

What does it mean to find a percentage of a number?

Back

Finding a percentage of a number means calculating how much that percentage represents in terms of the number.

Front

How do you calculate 25% of a number?

Back

To calculate 25% of a number, multiply the number by 0.25.

Front

What is the formula to calculate the discount on an item?

Back

The discount can be calculated using the formula: Discount = Original Price × Discount Rate.

Front

How do you calculate the final price after a discount?

Back

Final Price = Original Price - Discount.