express 0.3178 in p/q form, 178 is repeating manner.

Let x = 0.3178 = 0.3178178178......10x = 3.178178178.........             ......1Multiply 1 by 1000, we get10000 x = 3178.178178.........   ......2Subtracting 1 from 2 , we get10000x - 10x = 3178.178178.... - 3.178178178.....9990x = 3175x = 31759990 = 6351998so, 0.3178 = 6351998

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