Whakaoti i te 2/15+13/15+8/15*7/15=

$$\frac { 2 } { 15 } + \frac { 13 } { 15 } + \frac { 8 } { 15 } * \frac { 7 } { 15 } =$$

Aromātai

$$\frac{281}{225}\approx 1.248888889$$

Ngā Upane Otinga

Tā te mea he rite te tauraro o \frac{2}{15} me \frac{13}{15}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{2+13}{15}+\frac{8}{15}\times \frac{7}{15}$$

Tāpirihia te 2 ki te 13, ka 15.

$$\frac{15}{15}+\frac{8}{15}\times \frac{7}{15}$$

Whakawehea te 15 ki te 15, kia riro ko 1.

$$1+\frac{8}{15}\times \frac{7}{15}$$

Me whakarea te \frac{8}{15} ki te \frac{7}{15} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$1+\frac{8\times 7}{15\times 15}$$

Mahia ngā whakarea i roto i te hautanga \frac{8\times 7}{15\times 15}.

$$1+\frac{56}{225}$$

Me tahuri te 1 ki te hautau \frac{225}{225}.

$$\frac{225}{225}+\frac{56}{225}$$

Tā te mea he rite te tauraro o \frac{225}{225} me \frac{56}{225}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{225+56}{225}$$

Tāpirihia te 225 ki te 56, ka 281.

$$\frac{281}{225}$$

Tauwehe

$$\frac{281}{3 ^ {2} \cdot 5 ^ {2}} = 1\frac{56}{225} = 1.248888888888889$$