Express the number 0.8178 in the form of rational number?
( 0.8178= 178 p bar h)
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let x = 0.8178178...
10x = 8.178178...
10000x = 8178.178178...
10000x - 10x = 8178.178178 - 8.178178
9990x = 8170
x = 8170/9990
therefore, 0.8178178... = 817/999
10x = 8.178178...
10000x = 8178.178178...
10000x - 10x = 8178.178178 - 8.178178
9990x = 8170
x = 8170/9990
therefore, 0.8178178... = 817/999
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