\[2\frac{5}{8} = 2,625 \approx 0,005\]
\[\mathrm{\Delta}x = |2,63 - 2,625| = 0,005\]
\[\delta x = \frac{\mathrm{\Delta}x}{a} = \frac{0,005}{2,63} = 0,0019.\]
\[14\frac{11}{16} \approx 14,6875 \approx 14,69\]
\[\mathrm{\Delta}x = |14,69 - 14,6875| =\]
\[= 0,0025\]
\[\delta x = \frac{\mathrm{\Delta}x}{a} = \frac{0,0025}{14,69} = 0,00017.\]