Whakaoti i te 10/21*7/20div5/6+1/4

$$\frac { 10 } { 21 } \times \frac { 7 } { 20 } \div \frac { 5 } { 6 } + \frac { 1 } { 4 }$$

Aromātai

$$\frac{9}{20}=0.45$$

Ngā Upane Otinga

Me whakarea te \frac{10}{21} ki te \frac{7}{20} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{\frac{10\times 7}{21\times 20}}{\frac{5}{6}}+\frac{1}{4}$$

Mahia ngā whakarea i roto i te hautanga \frac{10\times 7}{21\times 20}.

$$\frac{\frac{70}{420}}{\frac{5}{6}}+\frac{1}{4}$$

Whakahekea te hautanga \frac{70}{420} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 70.

$$\frac{\frac{1}{6}}{\frac{5}{6}}+\frac{1}{4}$$

Whakawehe \frac{1}{6} ki te \frac{5}{6} mā te whakarea \frac{1}{6} ki te tau huripoki o \frac{5}{6}.

$$\frac{1}{6}\times \frac{6}{5}+\frac{1}{4}$$

Me whakarea te \frac{1}{6} ki te \frac{6}{5} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1\times 6}{6\times 5}+\frac{1}{4}$$

Me whakakore tahi te 6 i te taurunga me te tauraro.

$$\frac{1}{5}+\frac{1}{4}$$

Ko te maha noa iti rawa atu o 5 me 4 ko 20. Me tahuri \frac{1}{5} me \frac{1}{4} ki te hautau me te tautūnga 20.

$$\frac{4}{20}+\frac{5}{20}$$

Tā te mea he rite te tauraro o \frac{4}{20} me \frac{5}{20}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{4+5}{20}$$

Tāpirihia te 4 ki te 5, ka 9.

$$\frac{9}{20}$$

Tauwehe

$$\frac{3 ^ {2}}{2 ^ {2} \cdot 5} = 0.45$$