Whakaoti i te 1/3*3/4*3quad(1/10+1/4)*4

$$\frac { 1 } { 3 } \times \frac { 3 } { 4 } \times 3 \quad ( \frac { 1 } { 10 } + \frac { 1 } { 4 } ) \times 4$$

Aromātai

$$\frac{21}{20}=1.05$$

Ngā Upane Otinga

Me whakarea te \frac{1}{3} ki te \frac{3}{4} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1\times 3}{3\times 4}\times 3\left(\frac{1}{10}+\frac{1}{4}\right)\times 4$$

Me whakakore tahi te 3 i te taurunga me te tauraro.

$$\frac{1}{4}\times 3\left(\frac{1}{10}+\frac{1}{4}\right)\times 4$$

Whakareatia te \frac{1}{4} ki te 3, ka \frac{3}{4}.

$$\frac{3}{4}\left(\frac{1}{10}+\frac{1}{4}\right)\times 4$$

Ko te maha noa iti rawa atu o 10 me 4 ko 20. Me tahuri \frac{1}{10} me \frac{1}{4} ki te hautau me te tautūnga 20.

$$\frac{3}{4}\left(\frac{2}{20}+\frac{5}{20}\right)\times 4$$

Tā te mea he rite te tauraro o \frac{2}{20} me \frac{5}{20}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{3}{4}\times \frac{2+5}{20}\times 4$$

Tāpirihia te 2 ki te 5, ka 7.

$$\frac{3}{4}\times \frac{7}{20}\times 4$$

Me whakarea te \frac{3}{4} ki te \frac{7}{20} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{3\times 7}{4\times 20}\times 4$$

Mahia ngā whakarea i roto i te hautanga \frac{3\times 7}{4\times 20}.

$$\frac{21}{80}\times 4$$

Tuhia te \frac{21}{80}\times 4 hei hautanga kotahi.

$$\frac{21\times 4}{80}$$

Whakareatia te 21 ki te 4, ka 84.

$$\frac{84}{80}$$

Whakahekea te hautanga \frac{84}{80} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$\frac{21}{20}$$

Tauwehe

$$\frac{3 \cdot 7}{2 ^ {2} \cdot 5} = 1\frac{1}{20} = 1.05$$