5/6*4/15-3/5*20/18 eching

$$\frac { 5 } { 6 } \times \frac { 4 } { 15 } - \frac { 3 } { 5 } \times \frac { 20 } { 18 }$$

Baholash

$$-\frac{4}{9}\approx -0,444444444$$

Yechim qadamlari

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{5}{6} ni \frac{4}{15} ga ko‘paytiring.

$$\frac{5\times 4}{6\times 15}-\frac{3}{5}\times \frac{20}{18}$$

\frac{5\times 4}{6\times 15} kasridagi ko‘paytirishlarni bajaring.

$$\frac{20}{90}-\frac{3}{5}\times \frac{20}{18}$$

\frac{20}{90} ulushini 10 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{2}{9}-\frac{3}{5}\times \frac{20}{18}$$

\frac{20}{18} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{2}{9}-\frac{3}{5}\times \frac{10}{9}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{3}{5} ni \frac{10}{9} ga ko‘paytiring.

$$\frac{2}{9}-\frac{3\times 10}{5\times 9}$$

\frac{3\times 10}{5\times 9} kasridagi ko‘paytirishlarni bajaring.

$$\frac{2}{9}-\frac{30}{45}$$

\frac{30}{45} ulushini 15 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{2}{9}-\frac{2}{3}$$

9 va 3 ning eng kichik umumiy karralisi 9 ga teng. \frac{2}{9} va \frac{2}{3} ni 9 maxraj bilan kasrlarga aylantirib oling.

$$\frac{2}{9}-\frac{6}{9}$$

\frac{2}{9} va \frac{6}{9} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{2-6}{9}$$

-4 olish uchun 2 dan 6 ni ayirish.

$$-\frac{4}{9}$$

Omil

$$-\frac{4}{9} = -0,4444444444444444$$