Whakaoti i te 78%text{of}125+25%text{of}161=

$$78 \% \text { of } 125 + 25 \% \text { of } 161 =$$

Aromātai

$$\frac{551}{4}=137.75$$

Ngā Upane Otinga

Whakahekea te hautanga \frac{78}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{39}{50}\times 125+\frac{25}{100}\times 161$$

Tuhia te \frac{39}{50}\times 125 hei hautanga kotahi.

$$\frac{39\times 125}{50}+\frac{25}{100}\times 161$$

Whakareatia te 39 ki te 125, ka 4875.

$$\frac{4875}{50}+\frac{25}{100}\times 161$$

Whakahekea te hautanga \frac{4875}{50} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.

$$\frac{195}{2}+\frac{25}{100}\times 161$$

Whakahekea te hautanga \frac{25}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.

$$\frac{195}{2}+\frac{1}{4}\times 161$$

Whakareatia te \frac{1}{4} ki te 161, ka \frac{161}{4}.

$$\frac{195}{2}+\frac{161}{4}$$

Ko te maha noa iti rawa atu o 2 me 4 ko 4. Me tahuri \frac{195}{2} me \frac{161}{4} ki te hautau me te tautūnga 4.

$$\frac{390}{4}+\frac{161}{4}$$

Tā te mea he rite te tauraro o \frac{390}{4} me \frac{161}{4}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{390+161}{4}$$

Tāpirihia te 390 ki te 161, ka 551.

$$\frac{551}{4}$$

Tauwehe

$$\frac{19 \cdot 29}{2 ^ {2}} = 137\frac{3}{4} = 137.75$$