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The reciprocal answers of scores and decimals in the first chapter [15] of the mathematics exercise book in the second volume of the fifth grade of Zhejiang Education Edition.
Answer: 1, turn decimals into simplified fractions.

0.45=9/20 0.75=4/3 4.25=4 and 1/4.

0.25 = 1/4 0.375 = 3/8 1.875 = 1 7/8.

0.65 =13/200.55 =11/208.125 = 8 and 1/8.

2. Decimal part.

0. 175 0.625 0.3 125

0.52 0.34 0.85

3. Decimal part.

0.2 0.5 0. 125 0.25

0.75 0.4 0.6 0.8

0. 15 0.65 0.875 0.05

0.0625 0.04 0. 1 0.35

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