Whakaoti i te 1/4+x=2/10

$$\frac { 1 } { 4 } + x = \frac { 2 } { 10 }$$

Whakaoti mō x

$$x=-\frac{1}{20}=-0.05$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakahekea te hautanga \frac{2}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{1}{4}+x=\frac{1}{5}$$

Tangohia te \frac{1}{4} mai i ngā taha e rua.

$$x=\frac{1}{5}-\frac{1}{4}$$

Ko te maha noa iti rawa atu o 5 me 4 ko 20. Me tahuri \frac{1}{5} me \frac{1}{4} ki te hautau me te tautūnga 20.

$$x=\frac{4}{20}-\frac{5}{20}$$

Tā te mea he rite te tauraro o \frac{4}{20} me \frac{5}{20}, me tango rāua mā te tango i ō raua taurunga.

$$x=\frac{4-5}{20}$$

Tangohia te 5 i te 4, ka -1.

$$x=-\frac{1}{20}$$