Whakaoti i te 4/5+x=6/8

$$\frac { 4 } { 5 } + x = \frac { 6 } { 8 }$$

Whakaoti mō x

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

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakahekea te hautanga \frac{6}{8} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{4}{5}+x=\frac{3}{4}$$

Tangohia te \frac{4}{5} mai i ngā taha e rua.

$$x=\frac{3}{4}-\frac{4}{5}$$

Ko te maha noa iti rawa atu o 4 me 5 ko 20. Me tahuri \frac{3}{4} me \frac{4}{5} ki te hautau me te tautūnga 20.

$$x=\frac{15}{20}-\frac{16}{20}$$

Tā te mea he rite te tauraro o \frac{15}{20} me \frac{16}{20}, me tango rāua mā te tango i ō raua taurunga.

$$x=\frac{15-16}{20}$$

Tangohia te 16 i te 15, ka -1.

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