-1/n+m/n^2 eching

$$- \frac { 1 } { n } + \frac { m } { n ^ { 2 } }$$

Baholash

$$\frac{m-n}{n^{2}}$$

Yechim qadamlari

Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. n va n^{2} ning eng kichik umumiy karralisi n^{2}. -\frac{1}{n} ni \frac{n}{n} marotabaga ko'paytirish.

$$-\frac{n}{n^{2}}+\frac{m}{n^{2}}$$

-\frac{n}{n^{2}} va \frac{m}{n^{2}} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-n+m}{n^{2}}$$

Omil

$$\frac{m-n}{n^{2}}$$