If `1/7=0. 142857 ` , write the decimal expression of `2/7,3/7,4/7,5/6a n d6/7` without actually doing the long division.

Explanation

To find the decimal expressions of \( \frac{2}{7}, \frac{3}{7}, \frac{4}{7}, \frac{5}{7}, \) and \( \frac{6}{7} \) using the decimal expansion of \( \frac{1}{7} = 0.142857 \), we can follow these steps:

### Step 1: Find \( \frac{2}{7} \)
We know that:
\[ \frac{2}{7} = 2 \times \frac{1}{7} \]
Given \( \frac{1}{7} = 0.142857 \), we can multiply this by 2:
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