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36
Show that the numerator of $1+\frac12 +\frac13 +\cdots +\frac1{96}$ is divisible by $97$
math.stackexchange.com

19
Proving if it is possible to write 1 as the sum of the reciprocals of x odd integers
math.stackexchange.com

12
How can I find the perimeter of a concave pentagon?
math.stackexchange.com

11
Algebra solve for $x$ in the equation $x^3 = x$
math.stackexchange.com

11
Given the average of 15 students, and the average of 10 of them, what's the average of the other 5?
math.stackexchange.com

10
What is the fewest number of squares required to cover a $11\times13\text{ cm}$ rectangle without overlap?
math.stackexchange.com

10
Different ways to factor
math.stackexchange.com

10
Solving the equation $(x^2-3x+1)^2=4x^2-12x+9$
math.stackexchange.com

10
Drawing two cards from a deck of 16 (4 ranks and 4 suits)
math.stackexchange.com

10
How do you find the area of a parallelogram with the vertices?
math.stackexchange.com

8
Letters of "About"
math.stackexchange.com

7
Geometry Math 8th (Area of a Trapezoid)
math.stackexchange.com

7
Knight and Knaves logic problem
math.stackexchange.com

7
Number of $3$s in the units place
math.stackexchange.com

7
Generating the equation for probability
math.stackexchange.com

7
Problem based on ages of two persons.
math.stackexchange.com

7
strange duel chances and my analysis
math.stackexchange.com

7
Find integer that satisfies two congruences
math.stackexchange.com

6
Is f(x)=0 considered continous?
math.stackexchange.com

6
How to compare units?
math.stackexchange.com

6
Derivative of an expression
math.stackexchange.com

6
How to graph system of equations.
math.stackexchange.com

6
Runners and their chance of winning
math.stackexchange.com

6
Permutations of the word ENGLAND such that permutations start and end with a vowel
math.stackexchange.com

6
Best way to learn maths - proofs or exercises?
math.stackexchange.com

6
How many ways can multiple artworks be displayed?
math.stackexchange.com

6
Question based on numbers
math.stackexchange.com

6
What is the least possible denominator of such a positive rational number?
math.stackexchange.com

6
Probability against winning a raffle
math.stackexchange.com

6
$\frac{(x-1)(x+1)}{ (x+1)} \rightarrow (x-1)$ Domain Change
math.stackexchange.com

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