
Originally Posted by
Goldenboko
Grouping can sound vague to me, is six divided by 2 "grouped"? Quin's BODMAS is the most accurate, but it really doesn't matter what you use. I hate seeing "PEMDAS" vs. x arguments because none of this matters if...
A. If you speak English, treat the math like English and read left to smurfing right when using your favorite acronym. Whoever made that calculator that got the answer of one is a smurf and as a computer engineer I am appalled. English mothersmurfer do you speak it???
B. Understand the math that is going on, don't use the division sign, use fractions because it makes it abundantly clear what's going on.
I agree with reading left to right, and I like where you're coming from, but when I set it up as a fraction and simplify I get an answer of one.
I'm not the best in mathematics, but here goes my observations and thoughts on all this.
Bear in mind I'm placing 6 as the numerator and 2(1+2) as the denominator. So it goes 2(1+2), then 2(3), which leaves 6/6 or 1.
If I take the fraction six seconds, 6/2, and combine it with (1+2), it seems to me to be an entirely different problem with a different result. (As far as I know)
I gave this little problem two people I know, and they both got the consistent answer of 1. I watched and here's their line of logic.
Keep in mind they both read from left to right.
6/2(1+2)
6/2(3)
6/6
1
Both of the
kept the parenthesis even after they had combined the terms inside. I'd thought that (and I'm not sure on this one) that once the terms inside a set of parenthesis were taken care of you dropped them.
Basically this 6/2x3. If you read that left to right, you'd divide first. So you get 3x3=9
If you are supposed to keep the parenthesis, then it would make that key difference. It reads 6/2(3). Even when reading left to right, you still take care of parenthesis before anything else. When you do, it becomes 6/6. 6/6=1
So now my big question is, what becomes of the parenthesis after you combine the terms inside?? I thought they went away. This seems to be the area of divergence as I see it.