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\frac{2\times 3a}{2\left(a+2\right)}-\frac{\left(a-4b\right)\left(a+2\right)}{2\left(a+2\right)}
Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. a+2 va 2 ning eng kichik umumiy karralisi 2\left(a+2\right). \frac{3a}{a+2} ni \frac{2}{2} marotabaga ko'paytirish. \frac{a-4b}{2} ni \frac{a+2}{a+2} marotabaga ko'paytirish.
\frac{2\times 3a-\left(a-4b\right)\left(a+2\right)}{2\left(a+2\right)}
\frac{2\times 3a}{2\left(a+2\right)} va \frac{\left(a-4b\right)\left(a+2\right)}{2\left(a+2\right)} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.
\frac{6a-a^{2}-2a+4ba+8b}{2\left(a+2\right)}
2\times 3a-\left(a-4b\right)\left(a+2\right) ichidagi ko‘paytirishlarni bajaring.
\frac{4a-a^{2}+4ba+8b}{2\left(a+2\right)}
6a-a^{2}-2a+4ba+8b kabi iboralarga o‘xshab birlashtiring.
\frac{4a-a^{2}+4ba+8b}{2a+4}
2\left(a+2\right) ni kengaytirish.
\frac{2\times 3a}{2\left(a+2\right)}-\frac{\left(a-4b\right)\left(a+2\right)}{2\left(a+2\right)}
Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. a+2 va 2 ning eng kichik umumiy karralisi 2\left(a+2\right). \frac{3a}{a+2} ni \frac{2}{2} marotabaga ko'paytirish. \frac{a-4b}{2} ni \frac{a+2}{a+2} marotabaga ko'paytirish.
\frac{2\times 3a-\left(a-4b\right)\left(a+2\right)}{2\left(a+2\right)}
\frac{2\times 3a}{2\left(a+2\right)} va \frac{\left(a-4b\right)\left(a+2\right)}{2\left(a+2\right)} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.
\frac{6a-a^{2}-2a+4ba+8b}{2\left(a+2\right)}
2\times 3a-\left(a-4b\right)\left(a+2\right) ichidagi ko‘paytirishlarni bajaring.
\frac{4a-a^{2}+4ba+8b}{2\left(a+2\right)}
6a-a^{2}-2a+4ba+8b kabi iboralarga o‘xshab birlashtiring.
\frac{4a-a^{2}+4ba+8b}{2a+4}
2\left(a+2\right) ni kengaytirish.