7/8*5/16-3/16*5/8 eching

$$\frac{ 7 }{ 8 } \times \frac{ 5 }{ 16 } - \frac{ 3 }{ 16 } \times \frac{ 5 }{ 8 }$$

Baholash

$$\frac{5}{32}=0,15625$$

Yechim qadamlari

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{7}{8} ni \frac{5}{16} ga ko‘paytiring.

$$\frac{7\times 5}{8\times 16}-\frac{3}{16}\times \frac{5}{8}$$

\frac{7\times 5}{8\times 16} kasridagi ko‘paytirishlarni bajaring.

$$\frac{35}{128}-\frac{3}{16}\times \frac{5}{8}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{3}{16} ni \frac{5}{8} ga ko‘paytiring.

$$\frac{35}{128}-\frac{3\times 5}{16\times 8}$$

\frac{3\times 5}{16\times 8} kasridagi ko‘paytirishlarni bajaring.

$$\frac{35}{128}-\frac{15}{128}$$

\frac{35}{128} va \frac{15}{128} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{35-15}{128}$$

20 olish uchun 35 dan 15 ni ayirish.

$$\frac{20}{128}$$

\frac{20}{128} ulushini 4 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{5}{32}$$

Omil

$$\frac{5}{2 ^ {5}} = 0,15625$$