Dividing by 0.5 is the same as multiplying by 2. Simple
Everything I see memes like this I think:
“Do other people just not get basic math?”
- 250 marbles / 500 kids = 0.5 marble per kid
- 25 marbles / 50 kids = 0.5 marble per kid
- 2.5 marbles / 5 kids = 0.5 marble per kid
- 0.25 marbles / 0.5 kids = 0.5 marble per kid, but there’s only one half a kid with a quarter of a marble in this example.
In case people would like it demonstrated,
0.25/0.5
= 1/4 ÷ 1/2
= 2/4 ÷ 2/2
= 1/2 ÷ 1
A÷1 = A, therefore 0.25/0.5 = 0.5
Alternatively, (a/b)/(c/d) = (a×d)/(b×c)
1/4 ÷ 1/2 = 1×2 ÷ 4×1 = 2/4 = 1/2
And before any pedants crawl out of the woodwork, there are a load of implied brackets, at the spaces.
0.5 / 0.5 = 1, so reducing the top term by half (from 0.5 to 0.25) reduces the result by the same (from 1 to 0.5), makes perfect sense to me. Or, ya know, just remember that dividing by 0.5 is the same as multiplying by 2.
Or even simpler the half of 0.5 fits into 0.25. And we all know a half is 0.5
0.5 / 0.5 = 1
Fuck you, that’s even worse!
x / x = 1
really shouldn’t make anyone upset
Dividing any number, except 0, by itself equal 1, so the first part of your argument makes no sense.
Incorrect. The argument makes perfect sense, you just gave a reason for why the example’s initial point seems obvious. Proofs don’t need to be fancy or make novel arguments to be effective. It’s math, where the shortest distance between two points is a straight line.
So?
Nice little trick in the weird syntax we call math.
If you move it around it makes more sense.
.25 = 0.5*0.5
If you take half of something only half of the time you take a quarter of something.
I see it more clear with this: 0.25 * 2 = 0.5
Dividing by 0.5 is like multiplying by 2.
I get why computers suck at decimals and division now.
Maybe someone better at math can answer this, but is 0.25/0.5 functionally the same as 0.5/1, or simply 0.5?
Huh, that’s a cool way to think of it. I’ve done a decent amount of higher level maths but stuff like this always cooks my brain if I let it. I thought of the numbers as the fractions 1/4 and 1/2, which then reminds me that 1/2 * 1/2 = 1/4, but I think your way feels more elegant
You can call it whatever you want, as long as it equals 1/2 it’s the same number.
So yes, multiplying by 2/2 to make it more intuitively obvious is perfectly valid and a good way to think about it. Most arithmetic tricks are ultimately multiplying by 1 or adding 0 just to make the problem easier to handle.
I cannot comprehend how bad at math you need to be to ask this question.
Like, 2 + 2 = 4 = 3 + 1.
These are all equivalent. That’s what this symbol means: =
I cannot comprehend the level of douchery required to mock someone for asking an honest question. It’s gotta be high, at least Summer’s Eve or beyond.
The best part is how your answer is bad. It’s a correct statement but it doesn’t answer their question.
There are better ways of saying this. You know, polite ways, where you don’t come across as an insecure dickhead.
That is really mean. You shouldn’t attempt to teach people anything if this is what your mindset is like.
Every time I see something like this, the comments remind me that common core mathematics is a thing and it makes me sad.
Seriously, why is basic arithmetic worthy of so much discussion?
Just… do the math. It’s not complicated math.
I sometimes feel bad about myself cause I didn’t get very far into calculus, but then I remember that the average adult has no idea how fractions work.
A quarter of a half is a half
Edit: its a joke comment guys
More accurately a quarter of a whole is a half of a half of a whole
Not weird or disturbing at all
This is why I don’t like decimal notation lol
(1/4)/(1/2)=1/2makes it way clearer what is going on.I am in the completely opposite camp of you, I cannot, for the life of me comprehend the equation in this form.
What’s not to understand? One divided by four divided by one divided by two equals one divided by two. Simple.
I understand the math, that isn’t the problem. It’s how it looks. I have a struggle parsing it.
Come on it’s not even middle school maths.
(1/4) / (1/2) = (1/4) X (2/1) = (1/4) X 2 = 2/4 = 1/2 = 0.5
it has nothing to do with the equation itself, but the way that it looks. I understand the basics of the mathematics, but looking at it in this form does not work for me.
