Whakaoti i te 1/2+2/3-7/4

$$\frac { 1 } { 2 } + \frac { 2 } { 3 } - \frac { 7 } { 4 }$$

Aromātai

$$-\frac{7}{12}\approx -0.583333333$$

Ngā Upane Otinga

Ko te maha noa iti rawa atu o 2 me 3 ko 6. Me tahuri \frac{1}{2} me \frac{2}{3} ki te hautau me te tautūnga 6.

$$\frac{3}{6}+\frac{4}{6}-\frac{7}{4}$$

Tā te mea he rite te tauraro o \frac{3}{6} me \frac{4}{6}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{3+4}{6}-\frac{7}{4}$$

Tāpirihia te 3 ki te 4, ka 7.

$$\frac{7}{6}-\frac{7}{4}$$

Ko te maha noa iti rawa atu o 6 me 4 ko 12. Me tahuri \frac{7}{6} me \frac{7}{4} ki te hautau me te tautūnga 12.

$$\frac{14}{12}-\frac{21}{12}$$

Tā te mea he rite te tauraro o \frac{14}{12} me \frac{21}{12}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{14-21}{12}$$

Tangohia te 21 i te 14, ka -7.

$$-\frac{7}{12}$$

Tauwehe

$$-\frac{7}{12} = -0.5833333333333334$$