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

What does it mean to add two negative numbers?

Back

When adding two negative numbers, the result is always a negative number. You add their absolute values and keep the negative sign.

Front

What is the sum of -4 and -4,392?

Back

-4 + -4,392 = -4,396.

Front

What is the sum of -87 and -36?

Back

-87 + -36 = -123.

Front

What is the sum of 42 and 18?

Back

42 + 18 = 60.

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 sum of -5/6 and -3/8?

Back

-5/6 + -3/8 = -29/24 (or -1 5/24).

Front

What is the sum of 1/2 and 1/2?

Back

1/2 + 1/2 = 2/2 (or 1).

Front

What is the rule for adding a positive number and a negative number?

Back

When adding a positive number and a negative number, subtract the smaller absolute value from the larger absolute value and keep the sign of the number with the larger absolute value.

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. It is always a non-negative value.