Math Brian Teaser I thought of

  • Thread starter Thread starter Diffy
  • Start date Start date
AI Thread Summary
The discussion centers around a math brain teaser involving fractions and patterns. The initial examples provided lead to a proposed answer of 7/9, but the contributor expresses uncertainty due to insufficient examples. Another example, 4/5 - 5/6, is introduced, but the contributor admits to needing more time to solve it. Additionally, there is a light-hearted mention of a character named Brian, noted for poor spelling. Overall, the conversation highlights the challenge of identifying consistent patterns in the given math problems.
Diffy
Messages
441
Reaction score
0
I recently thought of this brain teaser and was thinking that people where would enjoy.

1/2 - 1/4 = 3
1/30 - 2/5 = 7
3/4 - 3/10 = ?Enjoy :smile:
 
Last edited:
Mathematics news on Phys.org
I can think of one pattern, which would give 7/9 as the answer, but 2 examples aren't enough for me to say. I'll try finding something else. And oh, who's Brian?
 
Last edited:
Brian is a horrible speller!

how about another example:

4/5 - 5/6 = 32
 
:confused:
 
Sorry Diffy, I haven't had much time to look at it. I'll try to solve it by the end of the day.
 

Thread 'Fermat's Last Theorem'

Fermat's Last Theorem has long been one of the most famous mathematical problems, and is now one of the most famous theorems. It simply states that the equation $$ a^n+b^n=c^n $$ has no solutions with positive integers if ##n>2.## It was named after Pierre de Fermat (1607-1665). The problem itself stems from the book Arithmetica by Diophantus of Alexandria. It gained popularity because Fermat noted in his copy "Cubum autem in duos cubos, aut quadratoquadratum in duos quadratoquadratos, et...
View full post »

Thread 'What Exactly is Dirac’s Delta Function? - Insight'

Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
View full post »
Thread 'Imaginary Pythagorus'

Thread 'Imaginary Pythagorus'

I posted this in the Lame Math thread, but it's got me thinking. Is there any validity to this? Or is it really just a mathematical trick? Naively, I see that i2 + plus 12 does equal zero2. But does this have a meaning? I know one can treat the imaginary number line as just another axis like the reals, but does that mean this does represent a triangle in the complex plane with a hypotenuse of length zero? Ibix offered a rendering of the diagram using what I assume is matrix* notation...
View full post »

Similar threads

I What is the missing number in this number sequence pattern?
Replies
3
Views
3K
I Just for fun: math brain teaser
Replies
8
Views
3K
I Math Myth: A prime is only divisible by 1 and itself
Replies
4
Views
2K
I Geometry problem of interest with a 3-4-5 triangle
2
Replies
59
Views
2K
MHB Interpolating Points with Continuous Modular Functions?
Replies
5
Views
1K
B Natural Numbers contain all the Primes
Replies
24
Views
3K
B Finding all possible sums given 2 lists, matched one to one
Replies
2
Views
1K
B How is the harmonic mean affected by additional data points?
Replies
4
Views
2K
Insights Reduction of Order For Recursions
Replies
4
Views
3K
B Power of ten and math power notation
Replies
7
Views
2K

Hot Threads

Recent Insights

Back
Top