Whakaoti i te 20/100+6/1000+1/2000-5/1

$$\frac{ 20 }{ 100 } + \frac{ 6 }{ 1000 } + \frac{ 1 }{ 2000 } - \frac{ 5 }{ 1 }$$

Aromātai

$$-\frac{9587}{2000}=-4.7935$$

Ngā Upane Otinga

Whakahekea te hautanga \frac{20}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 20.

$$\frac{1}{5}+\frac{6}{1000}+\frac{1}{2000}-\frac{5}{1}$$

Whakahekea te hautanga \frac{6}{1000} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{1}{5}+\frac{3}{500}+\frac{1}{2000}-\frac{5}{1}$$

Ko te maha noa iti rawa atu o 5 me 500 ko 500. Me tahuri \frac{1}{5} me \frac{3}{500} ki te hautau me te tautūnga 500.

$$\frac{100}{500}+\frac{3}{500}+\frac{1}{2000}-\frac{5}{1}$$

Tā te mea he rite te tauraro o \frac{100}{500} me \frac{3}{500}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{100+3}{500}+\frac{1}{2000}-\frac{5}{1}$$

Tāpirihia te 100 ki te 3, ka 103.

$$\frac{103}{500}+\frac{1}{2000}-\frac{5}{1}$$

Ko te maha noa iti rawa atu o 500 me 2000 ko 2000. Me tahuri \frac{103}{500} me \frac{1}{2000} ki te hautau me te tautūnga 2000.

$$\frac{412}{2000}+\frac{1}{2000}-\frac{5}{1}$$

Tā te mea he rite te tauraro o \frac{412}{2000} me \frac{1}{2000}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{412+1}{2000}-\frac{5}{1}$$

Tāpirihia te 412 ki te 1, ka 413.

$$\frac{413}{2000}-\frac{5}{1}$$

Ka whakawehea he tau ki te tahi, hua ai ko ia anō.

$$\frac{413}{2000}-5$$

Me tahuri te 5 ki te hautau \frac{10000}{2000}.

$$\frac{413}{2000}-\frac{10000}{2000}$$

Tā te mea he rite te tauraro o \frac{413}{2000} me \frac{10000}{2000}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{413-10000}{2000}$$

Tangohia te 10000 i te 413, ka -9587.

$$-\frac{9587}{2000}$$

Tauwehe

$$-\frac{9587}{2000} = -4\frac{1587}{2000} = -4.7935$$