E uchun yechish
E = \frac{18}{7} = 2\frac{4}{7} \approx 2,571428571
E'ni tayinlash
E≔\frac{18}{7}
Baham ko'rish
Klipbordga nusxa olish
E=\frac{-\frac{3}{2}}{\frac{8}{12}-\frac{5}{4}}
\frac{-3}{2} kasri manfiy belgini olib tashlash bilan -\frac{3}{2} sifatida qayta yozilishi mumkin.
E=\frac{-\frac{3}{2}}{\frac{2}{3}-\frac{5}{4}}
\frac{8}{12} ulushini 4 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
E=\frac{-\frac{3}{2}}{\frac{8}{12}-\frac{15}{12}}
3 va 4 ning eng kichik umumiy karralisi 12 ga teng. \frac{2}{3} va \frac{5}{4} ni 12 maxraj bilan kasrlarga aylantirib oling.
E=\frac{-\frac{3}{2}}{\frac{8-15}{12}}
\frac{8}{12} va \frac{15}{12} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.
E=\frac{-\frac{3}{2}}{-\frac{7}{12}}
-7 olish uchun 8 dan 15 ni ayirish.
E=-\frac{3}{2}\left(-\frac{12}{7}\right)
-\frac{3}{2} ni -\frac{7}{12} ga bo'lish -\frac{3}{2} ga k'paytirish -\frac{7}{12} ga qaytarish.
E=\frac{-3\left(-12\right)}{2\times 7}
Suratni maxrajga va maxrajini suratga ko‘paytirish orqali -\frac{3}{2} ni -\frac{12}{7} ga ko‘paytiring.
E=\frac{36}{14}
\frac{-3\left(-12\right)}{2\times 7} kasridagi ko‘paytirishlarni bajaring.
E=\frac{18}{7}
\frac{36}{14} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
Misollar
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