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 two rational numbers with different signs?

Back

When subtracting two rational numbers with different signs, convert the subtraction into addition by changing the sign of the number being subtracted.

Front

What is the result of subtracting a larger number from a smaller number?

Back

The result will be a negative number.

Front

Calculate: 128.008 - 110.995

Back

17.013

Front

Calculate: -2.4 - 1.2

Back

-3.6

Front

What is the result of subtracting a negative number from a negative number?

Back

The result will be less negative or more positive.

Front

Calculate: -7 - (-12)

Back

5

Front

What is the process of finding a common denominator when subtracting fractions?

Back

To subtract fractions, find a common denominator, convert each fraction to an equivalent fraction with that denominator, and then subtract the numerators.

Front

Calculate: -1/2 - 2/3

Back

-1 1/6