Đáp án+giải thích các bước giải:
Đ=$\text{(1374x57+687x86):(26x13+74x14)}$
=$\text{(78318+59082):(338+1036)}$
=$\text{137400:1374}$
=$\text{100}$
F=$\text{7x11x13x14}$ -$\dfrac{1001}{13013}$ +$\text{27027}$
= $\text{14014}$ -$\dfrac{1001}{13013}$ +$\text{27027}$
=$\dfrac{13013}{40040}$
=$\dfrac{13}{40}$
K= $\text{2006 x 125}$ + $\dfrac{1000}{126}$ x $\text{2005}$ - $\text{800}$
=$\text{250750}$ + $\dfrac{1000}{252630}$ - $\text{800}$
= $\dfrac{251750}{251830}$
=$\text{0,9996}$
