Fraction and Decimal Operations

Front

What is the formula to calculate the price per gallon of gas?

Back

Price per gallon = Total price / Total gallons.

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place that over the original denominator.

Front

What is the process to find the total number of servings from a weight of food?

Back

Divide the total weight by the weight of each serving.

Front

How do you calculate the weight of an ingredient in a mixture?

Back

Multiply the total weight of the mixture by the fraction that represents the ingredient's weight.

Front

What is the method to find the cost of a different quantity of an item based on a given price?

Back

Set up a proportion or use unit rate to find the cost for the new quantity.

Front

What is a reciprocal in mathematics?

Back

The reciprocal of a number is 1 divided by that number, or flipping the numerator and denominator of a fraction.

Front

How do you round a number to the nearest cent?

Back

Look at the third decimal place; if it's 5 or more, round up the second decimal place by one.

Front

What is the significance of unit rates in solving application problems?

Back

Unit rates allow you to compare different quantities on a common basis, making it easier to solve for unknowns.

Front

How do you convert a decimal to a fraction?

Back

Write the decimal as a fraction with a denominator of 1, then multiply the numerator and denominator by 10 for each digit after the decimal.

Front

What is the relationship between fractions and division?

Back

Dividing by a fraction is the same as multiplying by its reciprocal.