Dividing by 0.5 is the same as multiplying by 2. Simple
0.25 / 0.5 = 0.25 * 2 = 0.5
Yes dividing by a 0
Dividing by a division of 2… Of course it’s going to cancel out. Like subtracting a negative.
Surely you don’t not understand double negatives? Just think of it like that.
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.
I understand this mathematically, but can somebody explain it logically?
Start with the reverse. If you had half a pizza and you wanted to divide it by quarters of a pizza, you’d be able to do it 4 times (there are four quarter slices in a half pizza).
But with this we’re asking how many half-pizza slices are in a quarter-pizza slice. The answer is that there’s half of one (half of a half is a quarter).
Multiplying by 0.5 halves. Dividing would double the number. 0.25 doubled is 0.5.
Sleep well!
y/x = x with y = x*x because 0.25 is 0.5 squared.
from the “wow factor” it’s the same as writing: 9/3 = 3 - not very wow at all
0.25 is half of 0.5
A quarter is half of a half
When you divide by 0.5 (or any number) you are saying how many 0.5s (or other number) can I fit in that first number. You can fit half of a 0.5 in 0.25
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.
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.
Nice little trick in the weird syntax we call math.
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.
Not weird or disturbing at all
This is 25/50
So?
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.
