31/5:0.4/3:21/2-1/15 eching

$$\frac { 3 \frac { 1 } { 5 } : 0.4 } { 3 } : 2 \frac { 1 } { 2 } - \frac { 1 } { 15 }$$

Baholash

$$1$$

Yechim qadamlari

\frac{\frac{\frac{3\times 5+1}{5}}{0,4}}{3} ni \frac{2\times 2+1}{2} ga bo'lish \frac{\frac{\frac{3\times 5+1}{5}}{0,4}}{3} ga k'paytirish \frac{2\times 2+1}{2} ga qaytarish.

$$\frac{\frac{\frac{3\times 5+1}{5}}{0,4}\times 2}{3\left(2\times 2+1\right)}-\frac{1}{15}$$

\frac{\frac{3\times 5+1}{5}}{0,4} ni yagona kasrga aylantiring.

$$\frac{\frac{3\times 5+1}{5\times 0,4}\times 2}{3\left(2\times 2+1\right)}-\frac{1}{15}$$

15 hosil qilish uchun 3 va 5 ni ko'paytirish.

$$\frac{\frac{15+1}{5\times 0,4}\times 2}{3\left(2\times 2+1\right)}-\frac{1}{15}$$

16 olish uchun 15 va 1'ni qo'shing.

$$\frac{\frac{16}{5\times 0,4}\times 2}{3\left(2\times 2+1\right)}-\frac{1}{15}$$

2 hosil qilish uchun 5 va 0,4 ni ko'paytirish.

$$\frac{\frac{16}{2}\times 2}{3\left(2\times 2+1\right)}-\frac{1}{15}$$

8 ni olish uchun 16 ni 2 ga bo‘ling.

$$\frac{8\times 2}{3\left(2\times 2+1\right)}-\frac{1}{15}$$

16 hosil qilish uchun 8 va 2 ni ko'paytirish.

$$\frac{16}{3\left(2\times 2+1\right)}-\frac{1}{15}$$

4 hosil qilish uchun 2 va 2 ni ko'paytirish.

$$\frac{16}{3\left(4+1\right)}-\frac{1}{15}$$

5 olish uchun 4 va 1'ni qo'shing.

$$\frac{16}{3\times 5}-\frac{1}{15}$$

15 hosil qilish uchun 3 va 5 ni ko'paytirish.

$$\frac{16}{15}-\frac{1}{15}$$

\frac{16}{15} va \frac{1}{15} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{16-1}{15}$$

15 olish uchun 16 dan 1 ni ayirish.

$$\frac{15}{15}$$

1 ni olish uchun 15 ni 15 ga bo‘ling.

$$1$$

Omil

$$1$$