3/4*2/5+1/4div5/2 eching

$$\frac { 3 } { 4 } \times \frac { 2 } { 5 } + \frac { 1 } { 4 } \div \frac { 5 } { 2 }$$

Baholash

$$\frac{2}{5}=0,4$$

Yechim qadamlari

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{3}{4} ni \frac{2}{5} ga ko‘paytiring.

$$\frac{3\times 2}{4\times 5}+\frac{\frac{1}{4}}{\frac{5}{2}}$$

\frac{3\times 2}{4\times 5} kasridagi ko‘paytirishlarni bajaring.

$$\frac{6}{20}+\frac{\frac{1}{4}}{\frac{5}{2}}$$

\frac{6}{20} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{3}{10}+\frac{\frac{1}{4}}{\frac{5}{2}}$$

\frac{1}{4} ni \frac{5}{2} ga bo'lish \frac{1}{4} ga k'paytirish \frac{5}{2} ga qaytarish.

$$\frac{3}{10}+\frac{1}{4}\times \frac{2}{5}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{1}{4} ni \frac{2}{5} ga ko‘paytiring.

$$\frac{3}{10}+\frac{1\times 2}{4\times 5}$$

\frac{1\times 2}{4\times 5} kasridagi ko‘paytirishlarni bajaring.

$$\frac{3}{10}+\frac{2}{20}$$

\frac{2}{20} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{3}{10}+\frac{1}{10}$$

\frac{3}{10} va \frac{1}{10} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{3+1}{10}$$

4 olish uchun 3 va 1'ni qo'shing.

$$\frac{4}{10}$$

\frac{4}{10} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{2}{5}$$

Omil

$$\frac{2}{5} = 0,4$$