75 \% - 20 \% =
Aromātai
\frac{11}{20}=0.55
Tauwehe
\frac{11}{2 ^ {2} \cdot 5} = 0.55
Tohaina
Kua tāruatia ki te papatopenga
\frac{3}{4}-\frac{20}{100}
Whakahekea te hautanga \frac{75}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.
\frac{3}{4}-\frac{1}{5}
Whakahekea te hautanga \frac{20}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 20.
\frac{15}{20}-\frac{4}{20}
Ko te maha noa iti rawa atu o 4 me 5 ko 20. Me tahuri \frac{3}{4} me \frac{1}{5} ki te hautau me te tautūnga 20.
\frac{15-4}{20}
Tā te mea he rite te tauraro o \frac{15}{20} me \frac{4}{20}, me tango rāua mā te tango i ō raua taurunga.
\frac{11}{20}
Tangohia te 4 i te 15, ka 11.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
y = 3x + 4
Arithmetic
699 * 533
Poukapa
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
whārite Simultaneous
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}