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

$$\frac { 2 } { 3 } \times \frac { 1 } { 2 } - \frac { 1 } { 4 } \times \frac { 4 } { 5 }$$

Aromātai

$$\frac{2}{15}\approx 0.133333333$$

Ngā Upane Otinga

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

$$\frac{2\times 1}{3\times 2}-\frac{1}{4}\times \frac{4}{5}$$

Me whakakore tahi te 2 i te taurunga me te tauraro.

$$\frac{1}{3}-\frac{1}{4}\times \frac{4}{5}$$

Me whakarea te \frac{1}{4} ki te \frac{4}{5} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1}{3}-\frac{1\times 4}{4\times 5}$$

Me whakakore tahi te 4 i te taurunga me te tauraro.

$$\frac{1}{3}-\frac{1}{5}$$

Ko te maha noa iti rawa atu o 3 me 5 ko 15. Me tahuri \frac{1}{3} me \frac{1}{5} ki te hautau me te tautūnga 15.

$$\frac{5}{15}-\frac{3}{15}$$

Tā te mea he rite te tauraro o \frac{5}{15} me \frac{3}{15}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{5-3}{15}$$

Tangohia te 3 i te 5, ka 2.

$$\frac{2}{15}$$

Tauwehe

$$\frac{2}{3 \cdot 5} = 0.13333333333333333$$