1.

You know that `1/7`=0.`bar(142857)` can you predict what the decimal expansion of `2/7, 3/7,4/7 , 5/7, 6/7 ` are without actually doing the long division.

Answer» `1/7=0.overline142857`
`2/7=2*1/7=2*0.overline142857=0.overline285714`
`3/7=0.overline428571`
`4/7=0.overline571428`
`5/7=0.overline714285`
`6/7=0.overline857142`.


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