Enrhifo
\frac{2}{7}\approx 0.285714286
Ffactor
\frac{2}{7} = 0.2857142857142857
Rhannu
Copïo i clipfwrdd
\frac{-9+7}{5\left(-3\right)+8}
Lluosi 3 a -3 i gael -9.
\frac{-2}{5\left(-3\right)+8}
Adio -9 a 7 i gael -2.
\frac{-2}{-15+8}
Lluosi 5 a -3 i gael -15.
\frac{-2}{-7}
Adio -15 a 8 i gael -7.
\frac{2}{7}
Gellir symlhau’r ffracsiwn \frac{-2}{-7} i \frac{2}{7} drwy dynnu’r arwydd negatif o’r rhifiadur a’r enwadur.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometreg
4 \sin \theta \cos \theta = 2 \sin \theta
Hafaliad llinol
y = 3x + 4
Rhifyddeg
699 * 533
Matrics
\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}