Whakaoti i te 31/10*3/10+1/5div1/20=?

$$\frac { 31 } { 10 } \times \frac { 3 } { 10 } + \frac { 1 } { 5 } \div \frac { 1 } { 20 } = ?$$

Aromātai

$$\frac{493}{100}=4.93$$

Ngā Upane Otinga

Me whakarea te \frac{31}{10} ki te \frac{3}{10} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{31\times 3}{10\times 10}+\frac{\frac{1}{5}}{\frac{1}{20}}$$

Mahia ngā whakarea i roto i te hautanga \frac{31\times 3}{10\times 10}.

$$\frac{93}{100}+\frac{\frac{1}{5}}{\frac{1}{20}}$$

Whakawehe \frac{1}{5} ki te \frac{1}{20} mā te whakarea \frac{1}{5} ki te tau huripoki o \frac{1}{20}.

$$\frac{93}{100}+\frac{1}{5}\times 20$$

Whakareatia te \frac{1}{5} ki te 20, ka \frac{20}{5}.

$$\frac{93}{100}+\frac{20}{5}$$

Whakawehea te 20 ki te 5, kia riro ko 4.

$$\frac{93}{100}+4$$

Me tahuri te 4 ki te hautau \frac{400}{100}.

$$\frac{93}{100}+\frac{400}{100}$$

Tā te mea he rite te tauraro o \frac{93}{100} me \frac{400}{100}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{93+400}{100}$$

Tāpirihia te 93 ki te 400, ka 493.

$$\frac{493}{100}$$

Tauwehe

$$\frac{17 \cdot 29}{2 ^ {2} \cdot 5 ^ {2}} = 4\frac{93}{100} = 4.93$$