34/9-17/15= eching

$$3 \frac { 4 } { 9 } - 1 \frac { 7 } { 15 } =$$

Baholash

$$\frac{89}{45}\approx 1,977777778$$

Yechim qadamlari

27 hosil qilish uchun 3 va 9 ni ko'paytirish.

$$\frac{27+4}{9}-\frac{1\times 15+7}{15}$$

31 olish uchun 27 va 4'ni qo'shing.

$$\frac{31}{9}-\frac{1\times 15+7}{15}$$

15 hosil qilish uchun 1 va 15 ni ko'paytirish.

$$\frac{31}{9}-\frac{15+7}{15}$$

22 olish uchun 15 va 7'ni qo'shing.

$$\frac{31}{9}-\frac{22}{15}$$

9 va 15 ning eng kichik umumiy karralisi 45 ga teng. \frac{31}{9} va \frac{22}{15} ni 45 maxraj bilan kasrlarga aylantirib oling.

$$\frac{155}{45}-\frac{66}{45}$$

\frac{155}{45} va \frac{66}{45} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{155-66}{45}$$

89 olish uchun 155 dan 66 ni ayirish.

$$\frac{89}{45}$$

Omil

$$\frac{89}{3 ^ {2} \cdot 5} = 1\frac{44}{45} = 1,9777777777777779$$