Adding 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 negative rational numbers?

Back

To add two negative rational numbers, you add their absolute values and keep the negative sign.

Front

What is the result of adding a positive rational number to a negative rational number?

Back

The result depends on the absolute values of the numbers. If the positive number's absolute value is greater, the result is positive; if the negative number's absolute value is greater, the result is negative.

Front

What is the sum of -2.61 and -6.88?

Back

The sum is -9.49.

Front

How do you add a positive rational number to a negative rational number?

Back

Subtract the absolute value of the negative number from the positive number and keep the sign of the number with the larger absolute value.

Front

What is the sum of 34.5 and -7?

Back

The sum is 27.5.

Front

What is the result of adding a positive number to a negative number with a greater absolute value?

Back

The result will be negative.

Front

What is the sum of 9 and -6.73?

Back

The sum is 2.27.

Front

How do you add two rational numbers with different signs?

Back

Find the absolute values, subtract the smaller from the larger, and use the sign of the number with the larger absolute value.

Front

What is the sum of -4.2 and 3.3?

Back

The sum is -0.9.