Baholash
\frac{14}{5}=2,8
Omil
\frac{2 \cdot 7}{5} = 2\frac{4}{5} = 2,8
Baham ko'rish
Klipbordga nusxa olish
\frac{\left(1\times 20+1\right)\times 8}{20\times 2}\times \frac{2}{3}
\frac{1\times 20+1}{20} ni \frac{2}{8} ga bo'lish \frac{1\times 20+1}{20} ga k'paytirish \frac{2}{8} ga qaytarish.
\frac{1+20}{5}\times \frac{2}{3}
Surat va maxrajdagi ikkala 2\times 4 ni qisqartiring.
\frac{21}{5}\times \frac{2}{3}
21 olish uchun 1 va 20'ni qo'shing.
\frac{21\times 2}{5\times 3}
Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{21}{5} ni \frac{2}{3} ga ko‘paytiring.
\frac{42}{15}
\frac{21\times 2}{5\times 3} kasridagi ko‘paytirishlarni bajaring.
\frac{14}{5}
\frac{42}{15} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
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}