80-20 \%
Baholash
\frac{399}{5}=79,8
Omil
\frac{3 \cdot 7 \cdot 19}{5} = 79\frac{4}{5} = 79,8
Baham ko'rish
Klipbordga nusxa olish
80-\frac{1}{5}
\frac{20}{100} ulushini 20 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
\frac{400}{5}-\frac{1}{5}
80 ni \frac{400}{5} kasrga o‘giring.
\frac{400-1}{5}
\frac{400}{5} va \frac{1}{5} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.
\frac{399}{5}
399 olish uchun 400 dan 1 ni ayirish.
Misollar
Ikkilik tenglama
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometriya
4 \sin \theta \cos \theta = 2 \sin \theta
Chiziqli tenglama
y = 3x + 4
Arifmetik
699 * 533
Matritsa
\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]
Simli tenglama
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differensatsiya
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Oʻngga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Chegaralar
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}