Whakaoti i te 1/5*3/2+11/4

$$\frac { 1 } { 5 } \times \frac { 3 } { 2 } + 1 \frac { 1 } { 4 }$$

Aromātai

$$\frac{31}{20}=1.55$$

Ngā Upane Otinga

Me whakarea te \frac{1}{5} ki te \frac{3}{2} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1\times 3}{5\times 2}+\frac{1\times 4+1}{4}$$

Mahia ngā whakarea i roto i te hautanga \frac{1\times 3}{5\times 2}.

$$\frac{3}{10}+\frac{1\times 4+1}{4}$$

Whakareatia te 1 ki te 4, ka 4.

$$\frac{3}{10}+\frac{4+1}{4}$$

Tāpirihia te 4 ki te 1, ka 5.

$$\frac{3}{10}+\frac{5}{4}$$

Ko te maha noa iti rawa atu o 10 me 4 ko 20. Me tahuri \frac{3}{10} me \frac{5}{4} ki te hautau me te tautūnga 20.

$$\frac{6}{20}+\frac{25}{20}$$

Tā te mea he rite te tauraro o \frac{6}{20} me \frac{25}{20}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{6+25}{20}$$

Tāpirihia te 6 ki te 25, ka 31.

$$\frac{31}{20}$$

Tauwehe

$$\frac{31}{2 ^ {2} \cdot 5} = 1\frac{11}{20} = 1.55$$