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

What does it mean to subtract 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 5.5 - 2.75?

Back

2.75

Front

What is the result of -5 1/4 + 3 2/5?

Back

-1 17/20

Front

What is the result of -1 1/3 - (-2 1/3)?

Back

1

Front

What is the result of ⅛ - ¼?

Back

-1/8

Front

What is the result of -7 - (-12)?

Back

5

Front

How do you convert a mixed number to an improper fraction?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that over the original denominator.

Front

What is the first step in subtracting rational numbers?

Back

Identify the numbers to be subtracted and determine if they have the same sign or different signs.