Whakaoti i te 1/x+1/x+18-1/12

$$\frac { 1 } { x } + \frac { 1 } { x + 18 } - \frac { 1 } { 12 }$$

Aromātai

$$-\frac{\left(x-18\right)\left(x+12\right)}{12x\left(x+18\right)}$$

Ngā Hipanga Rongoā Poto

Hei tāpiri, hei tango kīanga rānei, me whakaroha ērā kia rite ā rātou tauraro. Ko te taurea pātahi iti rawa o x me x+18 ko x\left(x+18\right). Whakareatia \frac{1}{x} ki te \frac{x+18}{x+18}. Whakareatia \frac{1}{x+18} ki te \frac{x}{x}.

$$\frac{x+18}{x\left(x+18\right)}+\frac{x}{x\left(x+18\right)}-\frac{1}{12}$$

Tā te mea he rite te tauraro o \frac{x+18}{x\left(x+18\right)} me \frac{x}{x\left(x+18\right)}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{x+18+x}{x\left(x+18\right)}-\frac{1}{12}$$

Whakakotahitia ngā kupu rite i x+18+x.

$$\frac{2x+18}{x\left(x+18\right)}-\frac{1}{12}$$

Hei tāpiri, hei tango kīanga rānei, me whakaroha ērā kia rite ā rātou tauraro. Ko te taurea pātahi iti rawa o x\left(x+18\right) me 12 ko 12x\left(x+18\right). Whakareatia \frac{2x+18}{x\left(x+18\right)} ki te \frac{12}{12}. Whakareatia \frac{1}{12} ki te \frac{x\left(x+18\right)}{x\left(x+18\right)}.

$$\frac{12\left(2x+18\right)}{12x\left(x+18\right)}-\frac{x\left(x+18\right)}{12x\left(x+18\right)}$$

Tā te mea he rite te tauraro o \frac{12\left(2x+18\right)}{12x\left(x+18\right)} me \frac{x\left(x+18\right)}{12x\left(x+18\right)}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{12\left(2x+18\right)-x\left(x+18\right)}{12x\left(x+18\right)}$$

Mahia ngā whakarea i roto o 12\left(2x+18\right)-x\left(x+18\right).

$$\frac{24x+216-x^{2}-18x}{12x\left(x+18\right)}$$

Whakakotahitia ngā kupu rite i 24x+216-x^{2}-18x.

$$\frac{6x+216-x^{2}}{12x\left(x+18\right)}$$

Whakarohaina te 12x\left(x+18\right).

$$\frac{6x+216-x^{2}}{12x^{2}+216x}$$

Tauwehe

$$-\frac{\left(x-18\right)\left(x+12\right)}{12x\left(x+18\right)}$$