-9/8-6/5/frac{7{4}+1/2} eching

$$\frac { - \frac { 9 } { 8 } - \frac { 6 } { 5 } } { \frac { 7 } { 4 } + \frac { 1 } { 2 } }$$

Baholash

$$-\frac{31}{30}\approx -1,033333333$$

Yechim qadamlari

8 va 5 ning eng kichik umumiy karralisi 40 ga teng. -\frac{9}{8} va \frac{6}{5} ni 40 maxraj bilan kasrlarga aylantirib oling.

$$\frac{-\frac{45}{40}-\frac{48}{40}}{\frac{7}{4}+\frac{1}{2}}$$

-\frac{45}{40} va \frac{48}{40} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{\frac{-45-48}{40}}{\frac{7}{4}+\frac{1}{2}}$$

-93 olish uchun -45 dan 48 ni ayirish.

$$\frac{-\frac{93}{40}}{\frac{7}{4}+\frac{1}{2}}$$

4 va 2 ning eng kichik umumiy karralisi 4 ga teng. \frac{7}{4} va \frac{1}{2} ni 4 maxraj bilan kasrlarga aylantirib oling.

$$\frac{-\frac{93}{40}}{\frac{7}{4}+\frac{2}{4}}$$

\frac{7}{4} va \frac{2}{4} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-\frac{93}{40}}{\frac{7+2}{4}}$$

9 olish uchun 7 va 2'ni qo'shing.

$$\frac{-\frac{93}{40}}{\frac{9}{4}}$$

-\frac{93}{40} ni \frac{9}{4} ga bo'lish -\frac{93}{40} ga k'paytirish \frac{9}{4} ga qaytarish.

$$-\frac{93}{40}\times \frac{4}{9}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali -\frac{93}{40} ni \frac{4}{9} ga ko‘paytiring.

$$\frac{-93\times 4}{40\times 9}$$

\frac{-93\times 4}{40\times 9} kasridagi ko‘paytirishlarni bajaring.

$$\frac{-372}{360}$$

\frac{-372}{360} ulushini 12 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$-\frac{31}{30}$$

Omil

$$-\frac{31}{30} = -1\frac{1}{30} = -1,0333333333333334$$