+868 Compute
\frac{1}{1 \times 4} + \frac{1}{4 \times 7} + \frac{1}{7 \times 10}
+10 \(\frac{1}{1\times4}=0.25 \)
\(\frac{1}{7\times10}=\frac{1}{70}=0.0142857\)
\(\frac{1}{4\times7}=\frac{1}{28}=0.0357143\)
\(\frac{1}{28}+\frac{1}{70}+\frac{1}{1\times4}=\frac{3}{10}\)
The answer would be 0.3 or 3/10.
