Whakaoti i te 0.8-8/15+22/3quadtext{(o)}51/4*2.8-13

$$0.8 - \frac { 8 } { 15 } + 2 \frac { 2 } { 3 } \quad \text { (o) } 5 \frac { 1 } { 4 } \times 2.8 - 13$$

Aromātai

$$\frac{196o}{5}-\frac{191}{15}$$

Ngā Upane Otinga

Me tahuri ki tau ā-ira 0.8 ki te hautau \frac{8}{10}. Whakahekea te hautanga \frac{8}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{4}{5}-\frac{8}{15}+\frac{2\times 3+2}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Ko te maha noa iti rawa atu o 5 me 15 ko 15. Me tahuri \frac{4}{5} me \frac{8}{15} ki te hautau me te tautūnga 15.

$$\frac{12}{15}-\frac{8}{15}+\frac{2\times 3+2}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Tā te mea he rite te tauraro o \frac{12}{15} me \frac{8}{15}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{12-8}{15}+\frac{2\times 3+2}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Tangohia te 8 i te 12, ka 4.

$$\frac{4}{15}+\frac{2\times 3+2}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Whakareatia te 2 ki te 3, ka 6.

$$\frac{4}{15}+\frac{6+2}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Tāpirihia te 6 ki te 2, ka 8.

$$\frac{4}{15}+\frac{8}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Whakareatia te 5 ki te 4, ka 20.

$$\frac{4}{15}+\frac{8}{3}o\times \frac{20+1}{4}\times 2.8-13$$

Tāpirihia te 20 ki te 1, ka 21.

$$\frac{4}{15}+\frac{8}{3}o\times \frac{21}{4}\times 2.8-13$$

Me whakarea te \frac{8}{3} ki te \frac{21}{4} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{4}{15}+\frac{8\times 21}{3\times 4}o\times 2.8-13$$

Mahia ngā whakarea i roto i te hautanga \frac{8\times 21}{3\times 4}.

$$\frac{4}{15}+\frac{168}{12}o\times 2.8-13$$

Whakawehea te 168 ki te 12, kia riro ko 14.

$$\frac{4}{15}+14o\times 2.8-13$$

Whakareatia te 14 ki te 2.8, ka 39.2.

$$\frac{4}{15}+39.2o-13$$

Me tahuri te 13 ki te hautau \frac{195}{15}.

$$\frac{4}{15}+39.2o-\frac{195}{15}$$

Tā te mea he rite te tauraro o \frac{4}{15} me \frac{195}{15}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{4-195}{15}+39.2o$$

Tangohia te 195 i te 4, ka -191.

$$-\frac{191}{15}+39.2o$$

Whakaroha

$$\frac{196o}{5}-\frac{191}{15}$$

Ngā Upane Otinga

Me tahuri ki tau ā-ira 0.8 ki te hautau \frac{8}{10}. Whakahekea te hautanga \frac{8}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{4}{5}-\frac{8}{15}+\frac{2\times 3+2}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Ko te maha noa iti rawa atu o 5 me 15 ko 15. Me tahuri \frac{4}{5} me \frac{8}{15} ki te hautau me te tautūnga 15.

$$\frac{12}{15}-\frac{8}{15}+\frac{2\times 3+2}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Tā te mea he rite te tauraro o \frac{12}{15} me \frac{8}{15}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{12-8}{15}+\frac{2\times 3+2}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Tangohia te 8 i te 12, ka 4.

$$\frac{4}{15}+\frac{2\times 3+2}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Whakareatia te 2 ki te 3, ka 6.

$$\frac{4}{15}+\frac{6+2}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Tāpirihia te 6 ki te 2, ka 8.

$$\frac{4}{15}+\frac{8}{3}o\times \frac{5\times 4+1}{4}\times 2.8-13$$

Whakareatia te 5 ki te 4, ka 20.

$$\frac{4}{15}+\frac{8}{3}o\times \frac{20+1}{4}\times 2.8-13$$

Tāpirihia te 20 ki te 1, ka 21.

$$\frac{4}{15}+\frac{8}{3}o\times \frac{21}{4}\times 2.8-13$$

Me whakarea te \frac{8}{3} ki te \frac{21}{4} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{4}{15}+\frac{8\times 21}{3\times 4}o\times 2.8-13$$

Mahia ngā whakarea i roto i te hautanga \frac{8\times 21}{3\times 4}.

$$\frac{4}{15}+\frac{168}{12}o\times 2.8-13$$

Whakawehea te 168 ki te 12, kia riro ko 14.

$$\frac{4}{15}+14o\times 2.8-13$$

Whakareatia te 14 ki te 2.8, ka 39.2.

$$\frac{4}{15}+39.2o-13$$

Me tahuri te 13 ki te hautau \frac{195}{15}.

$$\frac{4}{15}+39.2o-\frac{195}{15}$$

Tā te mea he rite te tauraro o \frac{4}{15} me \frac{195}{15}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{4-195}{15}+39.2o$$

Tangohia te 195 i te 4, ka -191.

$$-\frac{191}{15}+39.2o$$