Réitigh n-1/10n+10-6/2

$$\frac { n - 1 } { 10 n + 10 } - \frac { 6 } { 2 }$$

Luacháil

$$-\frac{29n+31}{10\left(n+1\right)}$$

Céimeanna gearra réitigh

Roinn 6 faoi 2 chun 3 a fháil.

$$\frac{n-1}{10n+10}-3$$

Fachtóirigh 10n+10.

$$\frac{n-1}{10\left(n+1\right)}-3$$

Chun cothromóidí a shuimiú nó a dhealú, fairsingigh iad chun a n-ainmneoirí a mheaitseáil. Méadaigh 3 faoi \frac{10\left(n+1\right)}{10\left(n+1\right)}.

$$\frac{n-1}{10\left(n+1\right)}-\frac{3\times 10\left(n+1\right)}{10\left(n+1\right)}$$

Tá an t-ainmneoir céanna ag \frac{n-1}{10\left(n+1\right)} agus \frac{3\times 10\left(n+1\right)}{10\left(n+1\right)} agus, mar sin, is féidir iad a dhealú trína n-uimhreoirí a dhealú.

$$\frac{n-1-3\times 10\left(n+1\right)}{10\left(n+1\right)}$$

Déan iolrúcháin in n-1-3\times 10\left(n+1\right).

$$\frac{n-1-30n-30}{10\left(n+1\right)}$$

Cumaisc téarmaí comhchosúla in: n-1-30n-30.

$$\frac{-29n-31}{10\left(n+1\right)}$$

Fairsingigh 10\left(n+1\right)

$$\frac{-29n-31}{10n+10}$$

Fairsingigh

$$-\frac{29n+31}{10\left(n+1\right)}$$

Céimeanna gearra réitigh

Roinn 6 faoi 2 chun 3 a fháil.

$$\frac{n-1}{10n+10}-3$$

Fachtóirigh 10n+10.

$$\frac{n-1}{10\left(n+1\right)}-3$$

Chun cothromóidí a shuimiú nó a dhealú, fairsingigh iad chun a n-ainmneoirí a mheaitseáil. Méadaigh 3 faoi \frac{10\left(n+1\right)}{10\left(n+1\right)}.

$$\frac{n-1}{10\left(n+1\right)}-\frac{3\times 10\left(n+1\right)}{10\left(n+1\right)}$$

Tá an t-ainmneoir céanna ag \frac{n-1}{10\left(n+1\right)} agus \frac{3\times 10\left(n+1\right)}{10\left(n+1\right)} agus, mar sin, is féidir iad a dhealú trína n-uimhreoirí a dhealú.

$$\frac{n-1-3\times 10\left(n+1\right)}{10\left(n+1\right)}$$

Déan iolrúcháin in n-1-3\times 10\left(n+1\right).

$$\frac{n-1-30n-30}{10\left(n+1\right)}$$

Cumaisc téarmaí comhchosúla in: n-1-30n-30.

$$\frac{-29n-31}{10\left(n+1\right)}$$

Fairsingigh 10\left(n+1\right)

$$\frac{-29n-31}{10n+10}$$