Click to open network menu
Join or Log In
Mobafire logo

Join the leading League of Legends community. Create and share Champion Guides and Builds.

Create an MFN Account






Or

MOBAFire's first Mini Guide Contest of Season 14 is here! Create or update guides for the 30 featured champions and compete for up to $200 in prizes! 🏆
's Forum Avatar

6/2(1+2)

Creator: Pølsemanden February 26, 2012 6:42am
56 posts - page 3 of 6
PsiGuard
<Retired Admin>
PsiGuard's Forum Avatar
Show more awards
Posts:
10290
Joined:
Jun 26th, 2011
Permalink | Quote | PM | +Rep February 26, 2012 11:22am | Report
Fractions are division statements, but they can be notated differently.

6/(2*(1+2)) = 1, which is the same as 6 over (2*3)
(6/2)*(1+2) = 9, which is the same as 6 over 2 times 3 (over one).

It all depends on where you put the parentheses. Since the OP doesn't have any clear differentiation, Nighthawk's method is correct. Do the operations in order from right to left.

6/2*(1+2) = 6/2*3 = 3*3 = 9

If you want the answer of 1, you have to add some parentheses or write it as a fraction. Using the / sign does not indicate that the rest of the equation is the denominator of a fraction unless the following operations are grouped with parentheses or brackets.
Thanks to The_Nameless_Bard for the sig!
Kirluu
<Member>
Kirluu's Forum Avatar
Show more awards
Posts:
823
Joined:
Jan 15th, 2011
Permalink | Quote | PM | +Rep February 26, 2012 11:33am | Report
That's exactly the thing, though. When the / is used, it CAN implicate a fraction bar. Not that it necessarily does, but it CAN. That is what ÷ can't mean. ÷ is a straight forward division between exactly two numbers, and cannot implicate that a fraction is going on.

EDIT: To be honest, I would almost like to call it mathematically illegal to put up the equation as it has been, exactly because it is not possible to determine whether there is talk of a fraction or a simple division. There's just no way to know for sure, in which case of course you can only argue that you should go from left to right, and that brackets are needed to make it an official fraction, so yes, I suppose you guys are right. But still, to make this a proper, straight forward calculation, ÷ should have been used, and not /.
Check out my comprehensive guide for Jax !!
-
Make sure to hit that +Rep button if I helped you out, and you feel I deserve it! :)
Wayne3100
<Retired Admin>
Wayne3100's Forum Avatar
Show more awards
Posts:
7192
Joined:
Aug 3rd, 2011
Permalink | Quote | PM | +Rep February 26, 2012 11:36am | Report
Wayne3100 wrote:

who the f*** cares?

Thanks to MissMaw for the signature!
PsiGuard
<Retired Admin>
PsiGuard's Forum Avatar
Show more awards
Posts:
10290
Joined:
Jun 26th, 2011
Permalink | Quote | PM | +Rep February 26, 2012 11:42am | Report
Perhaps I wasn't clear.

THIS IS A FRACTION:
6/(2*(1+2))
It's the same as 6 over (2*(1+2)) which is the same as 6 over (2*3) which is the same as 6 over 3.

THIS IS ALSO A FRACTION:
(6/2)*(1+2)
It's the same as 6 over 2 times 3 (over one, if you wish).

The first example is one big fraction, while the second has a fraction multiplied by 3 over 1.

If there are no parentheses after the / sign, this indicates that the fraction ENDS after the first term (I'm stretching the definition of the word "term" to include numbers separated by any operation, not just addition or subtraction).

6/2*(1+2) means that the fraction ENDS after the two. The rest of the equation is not a part of the fraction. If it were, you'd have to add parentheses to indicate that there is more than one term in the denominator.

Fractions ARE division statements. They may look different, but they mean the exact same thing.

6/2*3 is the exact same as 6÷2*3. They both equal 9.
6/(2*3) is the exact same as 6÷(2*3). They both equal 1.

EDIT: Lol Wayne....
Thanks to Hoppermh for the sig!
Lugignaf
<Veteran>
Lugignaf's Forum Avatar
Show more awards
Posts:
10968
Joined:
Feb 8th, 2011
Permalink | Quote | PM | +Rep February 26, 2012 11:50am | Report
I CARE! MATH IS IMPORTANT IN EVERYDAY LIFE AS PROVEN IN THIS THREAD! >:[
wRAthoFVuLK
<Altruistic Artist>
wRAthoFVuLK's Forum Avatar
Show more awards
Posts:
10852
Joined:
Jan 17th, 2011
Permalink | Quote | PM | +Rep February 26, 2012 12:14pm | Report
PsiGuard wrote:

Fractions are division statements, but they can be notated differently.

6/(2*(1+2)) = 1, which is the same as 6 over (2*3)
(6/2)*(1+2) = 9, which is the same as 6 over 2 times 3 (over one).

It all depends on where you put the parentheses. Since the OP doesn't have any clear differentiation, Nighthawk's method is correct. Do the operations in order from right to left.

6/2*(1+2) = 6/2*3 = 3*3 = 9

If you want the answer of 1, you have to add some parentheses or write it as a fraction. Using the / sign does not indicate that the rest of the equation is the denominator of a fraction unless the following operations are grouped with parentheses or brackets.


yea that

Thanks to TRUeLM, Plastictree, Scrax, Xiaowiriamu, foggy12, JahGFX, jhoijhoi, msrobinson, JEFFY40HANDS, Nyoike, MissMaw, and me :) for the sigs!
Wintermond
<Member>
Wintermond's Forum Avatar
Posts:
3204
Joined:
Nov 18th, 2010
Permalink | Quote | PM | +Rep February 26, 2012 12:54pm | Report

El Psy Congroo.


|You can't spell slaughter without laughter.|

caucheka
<Veteran>
caucheka's Forum Avatar
Show more awards
Posts:
8290
Joined:
May 18th, 2010
Permalink | Quote | PM | +Rep February 26, 2012 1:00pm | Report
uh yes. 1/2*3 is the same as (1/2)*3

1 divided by 2 is .5, times 3 is 1.5

1/2 times 3 is 3/2, or 1.5

now it would be different if it was 1/(2*3) and that would be 1/6th
I like things that make me feel stupid. - Ken Levine
Lugignaf
<Veteran>
Lugignaf's Forum Avatar
Show more awards
Posts:
10968
Joined:
Feb 8th, 2011
Permalink | Quote | PM | +Rep February 26, 2012 1:17pm | Report
Aw ****. Early morning math has betrayed me. :/
Zoki
<Member>
Zoki's Forum Avatar
Show more awards
Posts:
1262
Joined:
Dec 28th, 2010
Permalink | Quote | PM | +Rep February 26, 2012 1:36pm | Report
Even I knew the right answer and I suck at math lol.

Life is 10% of what happens to you and 90% of how you react to it.
Sigs made by: LaCorpse, jhoijhoi, Katoki, JEFFY40HANDS, The_Nameless_Bard and Sk1llbug
-||- Check out my Master Yi guide -||-

You need to log in before commenting.

League of Legends Champions:

Teamfight Tactics Guide