x y z
----- + ----- + -----
y + z x + z x + y
$$\frac{x}{y + z} + \frac{y}{x + z} + \frac{z}{x + y}$$
x/(y + z) + y/(x + z) + z/(x + y)
Рациональный знаменатель
[src](x + y)*(x*(x + z) + y*(y + z)) + z*(x + z)*(y + z)
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(x + y)*(x + z)*(y + z)
$$\frac{1}{\left(x + y\right) \left(x + z\right) \left(y + z\right)} \left(z \left(x + z\right) \left(y + z\right) + \left(x + y\right) \left(x \left(x + z\right) + y \left(y + z\right)\right)\right)$$
Объединение рациональных выражений
[src](x + y)*(x*(x + z) + y*(y + z)) + z*(x + z)*(y + z)
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(x + y)*(x + z)*(y + z)
$$\frac{1}{\left(x + y\right) \left(x + z\right) \left(y + z\right)} \left(z \left(x + z\right) \left(y + z\right) + \left(x + y\right) \left(x \left(x + z\right) + y \left(y + z\right)\right)\right)$$
x y z
----- + ----- + -----
z + y x + z x + y
$$\frac{x}{y + z} + \frac{y}{x + z} + \frac{z}{x + y}$$
x y z
----- + ----- + -----
z + y x + z x + y
$$\frac{x}{y + z} + \frac{y}{x + z} + \frac{z}{x + y}$$
3 3 3
x + y + z + x*y*z
1 + -------------------------------------------------
2 2 2 2 2 2
x*y + x*z + y*x + y*z + z*x + z*y + 2*x*y*z
$$\frac{x^{3} + x y z + y^{3} + z^{3}}{x^{2} y + x^{2} z + x y^{2} + 2 x y z + x z^{2} + y^{2} z + y z^{2}} + 1$$
3 3 3 2 2 2 2 2 2
x + y + z + x*y + x*z + y*x + y*z + z*x + z*y + 3*x*y*z
----------------------------------------------------------------
(x + y)*(x + z)*(y + z)
$$\frac{1}{\left(x + y\right) \left(x + z\right) \left(y + z\right)} \left(x^{3} + x^{2} y + x^{2} z + x y^{2} + 3 x y z + x z^{2} + y^{3} + y^{2} z + y z^{2} + z^{3}\right)$$