2.17 = (2 * 100) + (1 * 1/101) + (7 * 1/102)
2.17 = (2 * 1) + (1 * 1/10) + (7 * 1/100)
2.17 = 2 + 1/10 + 7/100
2.17 = 2 + 0.1 + 0.07
Expanded Form of 2.17
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