Whakaoti i te 11/20+7/15-9/30=

$$\frac { 11 } { 20 } + \frac { 7 } { 15 } - \frac { 9 } { 30 } =$$

Aromātai

$$\frac{43}{60}\approx 0.716666667$$

Ngā Upane Otinga

Ko te maha noa iti rawa atu o 20 me 15 ko 60. Me tahuri \frac{11}{20} me \frac{7}{15} ki te hautau me te tautūnga 60.

$$\frac{33}{60}+\frac{28}{60}-\frac{9}{30}$$

Tā te mea he rite te tauraro o \frac{33}{60} me \frac{28}{60}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{33+28}{60}-\frac{9}{30}$$

Tāpirihia te 33 ki te 28, ka 61.

$$\frac{61}{60}-\frac{9}{30}$$

Whakahekea te hautanga \frac{9}{30} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$\frac{61}{60}-\frac{3}{10}$$

Ko te maha noa iti rawa atu o 60 me 10 ko 60. Me tahuri \frac{61}{60} me \frac{3}{10} ki te hautau me te tautūnga 60.

$$\frac{61}{60}-\frac{18}{60}$$

Tā te mea he rite te tauraro o \frac{61}{60} me \frac{18}{60}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{61-18}{60}$$

Tangohia te 18 i te 61, ka 43.

$$\frac{43}{60}$$

Tauwehe

$$\frac{43}{2 ^ {2} \cdot 3 \cdot 5} = 0.7166666666666667$$