Whakaoti i te 1/2*3/5+13/2*2/5

$$\frac { 1 } { 2 } \cdot \frac { 3 } { 5 } + 1 \frac { 3 } { 2 } \cdot \frac { 2 } { 5 }$$

Aromātai

$$\frac{13}{10}=1.3$$

Ngā Upane Otinga

Me whakarea te \frac{1}{2} ki te \frac{3}{5} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1\times 3}{2\times 5}+\frac{1\times 2+3}{2}\times \frac{2}{5}$$

Mahia ngā whakarea i roto i te hautanga \frac{1\times 3}{2\times 5}.

$$\frac{3}{10}+\frac{1\times 2+3}{2}\times \frac{2}{5}$$

Whakareatia te 1 ki te 2, ka 2.

$$\frac{3}{10}+\frac{2+3}{2}\times \frac{2}{5}$$

Tāpirihia te 2 ki te 3, ka 5.

$$\frac{3}{10}+\frac{5}{2}\times \frac{2}{5}$$

Me whakakore atu te \frac{5}{2} me tōna tau utu \frac{2}{5}.

$$\frac{3}{10}+1$$

Me tahuri te 1 ki te hautau \frac{10}{10}.

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

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

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

Tāpirihia te 3 ki te 10, ka 13.

$$\frac{13}{10}$$

Tauwehe

$$\frac{13}{2 \cdot 5} = 1\frac{3}{10} = 1.3$$