(3/5-1/3)*15-1/4 eching

$$( \frac { 3 } { 5 } - \frac { 1 } { 3 } ) \times 15 - \frac { 1 } { 4 }$$

Baholash

$$\frac{15}{4}=3,75$$

Yechim qadamlari

5 va 3 ning eng kichik umumiy karralisi 15 ga teng. \frac{3}{5} va \frac{1}{3} ni 15 maxraj bilan kasrlarga aylantirib oling.

$$\left(\frac{9}{15}-\frac{5}{15}\right)\times 15-\frac{1}{4}$$

\frac{9}{15} va \frac{5}{15} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{9-5}{15}\times 15-\frac{1}{4}$$

4 olish uchun 9 dan 5 ni ayirish.

$$\frac{4}{15}\times 15-\frac{1}{4}$$

15 va 15 ni qisqartiring.

$$4-\frac{1}{4}$$

4 ni \frac{16}{4} kasrga o‘giring.

$$\frac{16}{4}-\frac{1}{4}$$

\frac{16}{4} va \frac{1}{4} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{16-1}{4}$$

15 olish uchun 16 dan 1 ni ayirish.

$$\frac{15}{4}$$

Omil

$$\frac{3 \cdot 5}{2 ^ {2}} = 3\frac{3}{4} = 3,75$$