Adding and Subtracting 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

When adding two negative rational numbers, you add their absolute values and keep the negative sign. For example, -3 + -5 = -(3 + 5) = -8.

Front

What is the result of -23.4 - 3.4?

Back

-26.8

Front

What is the rule for subtracting a negative number?

Back

Subtracting a negative number is the same as adding its positive counterpart. For example, a - (-b) = a + b.

Front

How do you subtract fractions with different denominators?

Back

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

Front

What is the result of -7 - 2?

Back

-9

Front

What does it mean to add rational numbers?

Back

Adding rational numbers involves combining their values. If both numbers are positive, the result is positive; if both are negative, the result is negative.

Front

What is the result of 1/4 - 3/10?

Back

-1/20

Front

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

Back

When adding a positive and a negative rational 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 result of 3 + -7?

Back

-4