Whakaoti i te 1/5-3/10+1/4*2/4

$$\frac { \frac { 1 } { 5 } - \frac { 3 } { 10 } + \frac { 1 } { 4 } \cdot 2 } { 4 }$$

Aromātai

$$\frac{1}{10}=0.1$$

Ngā Upane Otinga

Ko te maha noa iti rawa atu o 5 me 10 ko 10. Me tahuri \frac{1}{5} me \frac{3}{10} ki te hautau me te tautūnga 10.

$$\frac{\frac{2}{10}-\frac{3}{10}+\frac{1}{4}\times 2}{4}$$

Tā te mea he rite te tauraro o \frac{2}{10} me \frac{3}{10}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{\frac{2-3}{10}+\frac{1}{4}\times 2}{4}$$

Tangohia te 3 i te 2, ka -1.

$$\frac{-\frac{1}{10}+\frac{1}{4}\times 2}{4}$$

Whakareatia te \frac{1}{4} ki te 2, ka \frac{2}{4}.

$$\frac{-\frac{1}{10}+\frac{2}{4}}{4}$$

Whakahekea te hautanga \frac{2}{4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{-\frac{1}{10}+\frac{1}{2}}{4}$$

Ko te maha noa iti rawa atu o 10 me 2 ko 10. Me tahuri -\frac{1}{10} me \frac{1}{2} ki te hautau me te tautūnga 10.

$$\frac{-\frac{1}{10}+\frac{5}{10}}{4}$$

Tā te mea he rite te tauraro o -\frac{1}{10} me \frac{5}{10}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{\frac{-1+5}{10}}{4}$$

Tāpirihia te -1 ki te 5, ka 4.

$$\frac{\frac{4}{10}}{4}$$

Whakahekea te hautanga \frac{4}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{\frac{2}{5}}{4}$$

Tuhia te \frac{\frac{2}{5}}{4} hei hautanga kotahi.

$$\frac{2}{5\times 4}$$

Whakareatia te 5 ki te 4, ka 20.

$$\frac{2}{20}$$

Whakahekea te hautanga \frac{2}{20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{1}{10}$$

Tauwehe

$$\frac{1}{2 \cdot 5} = 0.1$$