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3 years ago

3/4 + (-1/2) + (-2/3) explain me

Mathematics

1 answer:

Klio2033 [76]3 years ago

6 0

Answer:

Remove the parentheses, use LCM (least common multiplier), adjust fractions based on the LCM, since denominators are equal, combine the fractions, subtract. Your answer would be: -5/12.

Step-by-step explanation:

Steps to the words I said but in fraction step:

3/4 + (-1/2) + (-2/3)

3/4 - 1/2 - 2/3

9/12 - 6/12 - 8/12

9-6-8/12

-5/12

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What is the product of 8.2 x 10^2 and 3.4 x 10^5

Anuta_ua [19.1K]

Answer:

$278,800,000$ (Real Number) or $2.788 *10^8$ (Scientific Notation)

Concepts:

- Order of Operations

Parenthesis: ( )

Exponents: x²

Multiplication: ×

Division: ÷

Addition: +

Subtraction: -

Step-by-Step Solution:

$8.2*10^2*3.4*10^5$

Simplify exponents and square roots

$8.2*10^2*3.4*10^5$

$8.2*10^2*3.4*100000$

$8.2*100*3.4*100000$

$820*3.4*100000$

$2788*100000$

$278800000$

<h2>Answer:</h2>

278,800,000

Why learn this:

Order of operations is a basic rule of algebra. It tells us what to solve first when we have an equation with multiple functions, which is something that you will likely encounter throughout your math studies. The order is: Parentheses, Exponents, Multiplication and Division, then finally Addition and Subtraction. Remember that when you're solving within the parentheses, the Order of Operations applies!

Terms and topics

Order of operations

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