How can $\frac{4}{3} \times 3=4$ if $ \frac{4}{3}$ is $1.3$?
286
Is it true that $0.999999999\ldots=1$?
113359
Proving that $x^2 + 4$ is not divisible by $3$
23315
Solve $\frac{b}{a}=a.b$ in decimal
6595
Solve for positive integers: $\frac{4}{13}=\frac{1}{x}+\frac{1}{y}+\frac{1}{z}$
18530
Given 4 integers, $a, b, c, d > 0$, does $\frac{a}{b} < \frac{c}{d}$ imply $\frac{a}{b} < \frac{a+c}{b+d} < \frac{c}{d}$?
58284
How to prove that $\sqrt[3] 2 + \sqrt[3] 4$ is irrational?
148647
If $\dfrac{4x^2-1}{4x^2-y^2}$ is an integer, then it is $1$
104158
$\frac 00=$ ? Why It is un answerable?
58111
Typesetting 144...4 with "n times" under the 4's is easy, but what about \sqrt{144...4}?
33510
Why is 4 not an instance of Number?
123475
$\frac{1}{A_1A_2}=\frac{1}{A_1A_3}+\frac{1}{A_1A_4}$.Then find the value of $n$
14306
What is the formula for $\frac{1}{1\cdot 2}+\frac{1}{2\cdot 3}+\frac{1}{3\cdot 4}+\cdots +\frac{1}{n(n+1)}$
30404
Is $\mathbb{Z}/3\otimes \mathbb{Z}[1/2]=\mathbb{Z}/3$?
63679
Picture/intuitive proof of $\cos(3 \theta) = 4 \cos^3(\theta)-3\cos(\theta)$?
52018
Can $\frac{\sqrt{3}}{\sin20^{\circ}}-\frac{1}{\cos20^{\circ}}$ have two values?
158210
showing $\arctan(\frac{2}{3}) = \frac{1}{2} \arctan(\frac{12}{5})$
117046
Show that $\frac{a^2}{\sqrt{(1+a^3)(1+b^3)}}+\frac{b^2}{\sqrt{(1+b^3)(1+c^3)}}+\frac{c^2}{\sqrt{(1+c^3)(1+a^3)}} \geq \frac{4}{3}$