[poper]

$2008\div1004\frac{251}{49}+\frac{{10}^2-6^2}{8\times197}$
=$2008\div\frac{1004\times49+251}{49}+\frac{{10}^2-6^2}{8\times197}$
=$2008\times\frac{49}{(251\times4\times49)+251}+\frac{{10}^2-6^2}{8\times197}$
=$2008\times\frac{49}{251(4\times49+1)}+\frac{64}{8\times197}$
=$8\times\frac{49}{197}+\frac{64}{8\times197}$
=$\frac{8^2\times49+64}{8\times197}$
=$\frac{(8\times49)+8}{197}$
=$\frac{400}{197}$
=$2\frac{6}{197}$
ดูแล้วยังไมค่อยสวยอ่ะ(ช่วยเช็คด้วยครับ)
แหะๆ ผิดไปนิด