Whakaoti i te =[15/7-8/49div35]*28/3

$$= [ \frac { 15 } { 7 } - \frac { 8 } { 49 } \div 35 ] \times \frac { 28 } { 3 }$$

Aromātai

$$\frac{14668}{735}\approx 19.956462585$$

Ngā Upane Otinga

Tuhia te \frac{\frac{8}{49}}{35} hei hautanga kotahi.

$$\left(\frac{15}{7}-\frac{8}{49\times 35}\right)\times \frac{28}{3}$$

Whakareatia te 49 ki te 35, ka 1715.

$$\left(\frac{15}{7}-\frac{8}{1715}\right)\times \frac{28}{3}$$

Ko te maha noa iti rawa atu o 7 me 1715 ko 1715. Me tahuri \frac{15}{7} me \frac{8}{1715} ki te hautau me te tautūnga 1715.

$$\left(\frac{3675}{1715}-\frac{8}{1715}\right)\times \frac{28}{3}$$

Tā te mea he rite te tauraro o \frac{3675}{1715} me \frac{8}{1715}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{3675-8}{1715}\times \frac{28}{3}$$

Tangohia te 8 i te 3675, ka 3667.

$$\frac{3667}{1715}\times \frac{28}{3}$$

Me whakarea te \frac{3667}{1715} ki te \frac{28}{3} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{3667\times 28}{1715\times 3}$$

Mahia ngā whakarea i roto i te hautanga \frac{3667\times 28}{1715\times 3}.

$$\frac{102676}{5145}$$

Whakahekea te hautanga \frac{102676}{5145} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 7.

$$\frac{14668}{735}$$

Tauwehe

$$\frac{2 ^ {2} \cdot 19 \cdot 193}{3 \cdot 5 \cdot 7 ^ {2}} = 19\frac{703}{735} = 19.956462585034014$$