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小数和分数是数的两种表现形式,在某种情况下它们之间可以互相转化。比如,若想把0.75化成分数,需将0.75的小数点去掉变成75做分数的分子,由于0.75是两位小数,就在1后面添两个0作分母,这样就可以了,即0.75→(75)/(100),把(75)/(100)约分变成3/4。
Decimals and fractions are two manifestations of numbers, and in some cases they can transform one another. For example, if we want to divide 0.75 into fractions, we need to remove the decimal point of 0.75 to make the numerator of 75. Since 0.75 is a two-digit decimal, add two 0’s for denominator after 1, which means 0.75 → ( 75) / (100), and change (75) / (100) points to 3/4.