Baholash
\frac{5}{21}\approx 0,238095238
Omil
\frac{5}{3 \cdot 7} = 0,23809523809523808
Baham ko'rish
Klipbordga nusxa olish
1-\left(\frac{9}{21}+\frac{7}{21}\right)
7 va 3 ning eng kichik umumiy karralisi 21 ga teng. \frac{3}{7} va \frac{1}{3} ni 21 maxraj bilan kasrlarga aylantirib oling.
1-\frac{9+7}{21}
\frac{9}{21} va \frac{7}{21} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.
1-\frac{16}{21}
16 olish uchun 9 va 7'ni qo'shing.
\frac{21}{21}-\frac{16}{21}
1 ni \frac{21}{21} kasrga o‘giring.
\frac{21-16}{21}
\frac{21}{21} va \frac{16}{21} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.
\frac{5}{21}
5 olish uchun 21 dan 16 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}