Whakaoti i te 1/7*(23/5-1/2)

$$\frac { 1 } { 7 } \times ( 2 \frac { 3 } { 5 } - \frac { 1 } { 2 } )$$

Aromātai

$$\frac{3}{10}=0.3$$

Ngā Upane Otinga

Whakareatia te 2 ki te 5, ka 10.

$$\frac{1}{7}\left(\frac{10+3}{5}-\frac{1}{2}\right)$$

Tāpirihia te 10 ki te 3, ka 13.

$$\frac{1}{7}\left(\frac{13}{5}-\frac{1}{2}\right)$$

Ko te maha noa iti rawa atu o 5 me 2 ko 10. Me tahuri \frac{13}{5} me \frac{1}{2} ki te hautau me te tautūnga 10.

$$\frac{1}{7}\left(\frac{26}{10}-\frac{5}{10}\right)$$

Tā te mea he rite te tauraro o \frac{26}{10} me \frac{5}{10}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{1}{7}\times \frac{26-5}{10}$$

Tangohia te 5 i te 26, ka 21.

$$\frac{1}{7}\times \frac{21}{10}$$

Me whakarea te \frac{1}{7} ki te \frac{21}{10} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1\times 21}{7\times 10}$$

Mahia ngā whakarea i roto i te hautanga \frac{1\times 21}{7\times 10}.

$$\frac{21}{70}$$

Whakahekea te hautanga \frac{21}{70} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 7.

$$\frac{3}{10}$$

Tauwehe

$$\frac{3}{2 \cdot 5} = 0.3$$