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Least common denominator y/(y-3)+3/(3-y)

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  y       3  
----- + -----
y - 3   3 - y

$$\frac{y}{y - 3} + \frac{3}{3 - y}$$

y/(y - 3) + 3/(3 - y)

General simplification [src]

$$1$$

Fraction decomposition [src]

$$1$$

Common denominator [src]

$$1$$

Combining rational expressions [src]

-9 + 3*y + y*(3 - y)
--------------------
  (-3 + y)*(3 - y)

$$\frac{y \left(3 - y\right) + 3 y - 9}{\left(3 - y\right) \left(y - 3\right)}$$

(-9 + 3*y + y*(3 - y))/((-3 + y)*(3 - y))

Numerical answer [src]

3.0/(3.0 - y) + y/(-3.0 + y)

3.0/(3.0 - y) + y/(-3.0 + y)

Rational denominator [src]

-9 + 3*y + y*(3 - y)
--------------------
  (-3 + y)*(3 - y)

$$\frac{y \left(3 - y\right) + 3 y - 9}{\left(3 - y\right) \left(y - 3\right)}$$

(-9 + 3*y + y*(3 - y))/((-3 + y)*(3 - y))

Combinatorics [src]

$$1$$