Enrhifo
\frac{2821}{4}=705.25
Ffactor
\frac{7 \cdot 13 \cdot 31}{2 ^ {2}} = 705\frac{1}{4} = 705.25
Rhannu
Copïo i clipfwrdd
91\times \frac{28+3}{4}
Lluosi 7 a 4 i gael 28.
91\times \frac{31}{4}
Adio 28 a 3 i gael 31.
\frac{91\times 31}{4}
Mynegwch 91\times \frac{31}{4} fel ffracsiwn unigol.
\frac{2821}{4}
Lluosi 91 a 31 i gael 2821.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometreg
4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
Rhifyddeg
699 * 533
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\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]
Hafaliad ar y pryd
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Gwahaniaethu
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integreiddiad
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}