Word Problems with Rational Numbers

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 two rational numbers with different signs?

Back

To add two rational numbers with different signs, subtract the absolute values and keep the sign of the number with the larger absolute value.

Front

What is the process to convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

How do you compare fractions with different denominators?

Back

To compare fractions with different denominators, convert them to a common denominator or convert them to decimals.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, |-5| = 5.

Front

How do you solve a word problem involving negative numbers?

Back

Identify the context of the problem, translate it into a mathematical expression, and then solve it using appropriate operations.

Front

What is the total cost if an item costs $1.79 and another costs $1.19?

Back

$1.79 + $1.19 = $2.98.

Front

How do you find the least common denominator (LCD) of two fractions?

Back

The least common denominator is the smallest multiple that both denominators share. List the multiples of each denominator and find the smallest one.

Front

What does it mean to order numbers from least to greatest?

Back

Ordering numbers from least to greatest means arranging them in ascending order, starting with the smallest number.

Front

What is the first step in solving a word problem?

Back

Read the problem carefully to understand what is being asked and identify the relevant information.