31/2+15/39+(-35) eching

$$3 \frac { 1 } { 2 } + \frac { 15 } { 39 } + ( - 35 )$$

Baholash

$$-\frac{809}{26}\approx -31,115384615$$

Yechim qadamlari

6 hosil qilish uchun 3 va 2 ni ko'paytirish.

$$\frac{6+1}{2}+\frac{15}{39}-35$$

7 olish uchun 6 va 1'ni qo'shing.

$$\frac{7}{2}+\frac{15}{39}-35$$

\frac{15}{39} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{7}{2}+\frac{5}{13}-35$$

2 va 13 ning eng kichik umumiy karralisi 26 ga teng. \frac{7}{2} va \frac{5}{13} ni 26 maxraj bilan kasrlarga aylantirib oling.

$$\frac{91}{26}+\frac{10}{26}-35$$

\frac{91}{26} va \frac{10}{26} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{91+10}{26}-35$$

101 olish uchun 91 va 10'ni qo'shing.

$$\frac{101}{26}-35$$

35 ni \frac{910}{26} kasrga o‘giring.

$$\frac{101}{26}-\frac{910}{26}$$

\frac{101}{26} va \frac{910}{26} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{101-910}{26}$$

-809 olish uchun 101 dan 910 ni ayirish.

$$-\frac{809}{26}$$

Omil

$$-\frac{809}{26} = -31\frac{3}{26} = -31,115384615384617$$