0.257 = (2 * 1/101) + (5 * 1/102) + (7 * 1/103)
0.257 = (2 * 1/10) + (5 * 1/100) + (7 * 1/1,000)
0.257 = 2/10 + 5/100 + 7/1,000
0.257 = 0.2 + 0.05 + 0.007
Expanded Form of 0.257
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