Why does 6÷2(1 2)=9

Pure Capsaicin. Here, make life easy: Python 2. Scott Alan Miller wrote: Here, make life easy: Python 2. Never used Linux in my life! People were using distribution. Rule 1: First perform any calculations inside parentheses. Rule 2: Next perform all multiplications and divisions, working from left to right. Rule 3: Lastly, perform all additions and subtractions, working from left to right. Michael wrote: This is simple high school math.

You get 1 when you use the order of precedence incorrectly. Texkonc Apr 27, at UTC. Scott Alan Miller wrote: Michael wrote: This is simple high school math. Andrew Feist wrote: Well it is required but I haven't taken any Linux classes yet. Shayne Apr 27, at UTC. Panda w bold Apr 28, at UTC. Russell P This person is a verified professional. Verify your account to enable IT peers to see that you are a professional.

These things are posted on forums to "troll" users. Both methods mean the same thing though because division and multiplication are paired together. Addition and subtraction are also paired together too.

Taylor Swift. Little Mix. A viral maths sum is dividing the internet 17 November , Updated: 17 November , By Sam Prance samprance. So for the way this question is written the answer is 9 — aslan aslanshahidxx November 13, People don't understand that you multiply before you divide — Joey kokicries November 13, Latest Viral News. Trending on PopBuzz. This is without argument the correct answer of how to evaluate this expression according to current usage.

Some people have a different interpretation. What would you think the author was trying to write? From this stage, the rest of the calculation works by the order of operations. First we evaluate the multiplication inside the parentheses. So we multiply 2 by 3 to get 6. And then we divide 6 by 6. This gives the result of 1. This is not the correct answer; rather it is what someone might have interpreted the expression according to old usage. For example, a textbook would have written:.

This indicates that the divisor is the entire product on the right of the symbol. In other words, the problem is evaluated:. I suspect the custom was out of practical considerations. The in-line expression would have been easier to typeset, and it takes up less space compared to writing a fraction as a numerator over a denominator:. The in-line expression also omits the parentheses of the divisor.

However, that practice of the division symbol was confusing, and it went against the order of operations. It was something of a well-accepted exception to the rule. Today this practice is discouraged, and I have never seen a mathematician write an ambiguous expression using the division symbol.

Textbooks always have proper parentheses, or they explain what is to be divided. If you send an email on this problem, I may not have time to reply. In , Slate explained this problem and provided a bit about the history of the division symbol. Lennes, N. I run the MindYourDecisions channel on YouTube , which has over 1 million subscribers and million views. As you might expect, the links for my books go to their listings on Amazon. As an Amazon Associate I earn from qualifying purchases.

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