Whakaoti i te 3/4+1.25div11/2

$$\frac { 3 } { 4 } + 1.25 \div 1 \frac { 1 } { 2 }$$

Aromātai

$$\frac{19}{12}\approx 1.583333333$$

Ngā Upane Otinga

Whakawehe 1.25 ki te \frac{1\times 2+1}{2} mā te whakarea 1.25 ki te tau huripoki o \frac{1\times 2+1}{2}.

$$\frac{3}{4}+\frac{1.25\times 2}{1\times 2+1}$$

Whakareatia te 1.25 ki te 2, ka 2.5.

$$\frac{3}{4}+\frac{2.5}{1\times 2+1}$$

Whakareatia te 1 ki te 2, ka 2.

$$\frac{3}{4}+\frac{2.5}{2+1}$$

Tāpirihia te 2 ki te 1, ka 3.

$$\frac{3}{4}+\frac{2.5}{3}$$

Whakarohaina te \frac{2.5}{3} mā te whakarea i te taurunga me te tauraro ki te 10.

$$\frac{3}{4}+\frac{25}{30}$$

Whakahekea te hautanga \frac{25}{30} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$\frac{3}{4}+\frac{5}{6}$$

Ko te maha noa iti rawa atu o 4 me 6 ko 12. Me tahuri \frac{3}{4} me \frac{5}{6} ki te hautau me te tautūnga 12.

$$\frac{9}{12}+\frac{10}{12}$$

Tā te mea he rite te tauraro o \frac{9}{12} me \frac{10}{12}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{9+10}{12}$$

Tāpirihia te 9 ki te 10, ka 19.

$$\frac{19}{12}$$

Tauwehe

$$\frac{19}{3 \cdot 2 ^ {2}} = 1\frac{7}{12} = 1.5833333333333333$$