71/6-5/18-15= eching

$$7 \frac { 1 } { 6 } - \frac { 5 } { 18 } - 15 =$$

Baholash

$$-\frac{73}{9}\approx -8,111111111$$

Yechim qadamlari

42 hosil qilish uchun 7 va 6 ni ko'paytirish.

$$\frac{42+1}{6}-\frac{5}{18}-15$$

43 olish uchun 42 va 1'ni qo'shing.

$$\frac{43}{6}-\frac{5}{18}-15$$

6 va 18 ning eng kichik umumiy karralisi 18 ga teng. \frac{43}{6} va \frac{5}{18} ni 18 maxraj bilan kasrlarga aylantirib oling.

$$\frac{129}{18}-\frac{5}{18}-15$$

\frac{129}{18} va \frac{5}{18} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{129-5}{18}-15$$

124 olish uchun 129 dan 5 ni ayirish.

$$\frac{124}{18}-15$$

\frac{124}{18} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{62}{9}-15$$

15 ni \frac{135}{9} kasrga o‘giring.

$$\frac{62}{9}-\frac{135}{9}$$

\frac{62}{9} va \frac{135}{9} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{62-135}{9}$$

-73 olish uchun 62 dan 135 ni ayirish.

$$-\frac{73}{9}$$

Omil

$$-\frac{73}{9} = -8\frac{1}{9} = -8,11111111111111$$