SaiBook.us Algebra

Lesson Example Discussion Quiz: Class Homework

Example

Title: The Inverse Property

Grade: 6-a Lesson: S2-L3

Explanation: The best way to understand algebra is by looking at some examples. Take turns and read each example for easy understanding.

Examples:

What is the additive inverse of \$2/3\$?

Step 1a

The given number is \$2/3\$

The additive inverse of \$"a"/"b"\$ is \$-"a"/"b"\$

The additive inverse of \$ 2/3 \$ is \$ - 2/3 \$.

Explanation: Using the additive inverse formula, we obtained - \$ 2/3 \$.

What is the multiplicative inverse of x = 5?

Step 2a

The given number is 5
The formula for multiplicative inverse is \$"x" \times (1/"x") = 1\$
⇒ x = \$ 1/"x" \$
The multiplicative inverse of 5 is \$ 1/5 \$.

Explanation: Here, we know the multiplicative inverse formula. Therefore, The multiplicative inverse of 5 is \$ 1/5 \$.