Math 7 VA SOL 7.2 Practical Probs with Rationals

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert the fractions, and then add the numerators.

Front

What is the formula to calculate total cost when buying multiple items?

Back

Total Cost = Number of Items × Price per Item.

Front

How do you subtract mixed numbers?

Back

To subtract mixed numbers, convert them to improper fractions, subtract, and then convert back to a mixed number if necessary.

Front

What is the process to find the total amount after a deposit in a bank account?

Back

Total Amount = Initial Balance + Deposit Amount.

Front

How do you calculate the total time for an event with a flat fee and hourly rate?

Back

Total Cost = Flat Fee + (Hourly Rate × Number of Hours).

Front

What is the method to combine like terms in an expression?

Back

Combine like terms by adding or subtracting the coefficients of terms that have the same variable.

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 result over the original denominator.

Front

What is the importance of understanding negative numbers in financial contexts?

Back

Negative numbers represent debts or losses, which are crucial for understanding account balances and financial statements.

Front

How do you find the total of two fractions?

Back

To find the total of two fractions, ensure they have a common denominator, then add the numerators and keep the common denominator.