•¼ and 0.25 are different ways of representing the same fraction.1/4和0.25是同一分数的不同表达方式。

•Although sexual and violent crimes have increased by 10%, they remain only a tiny/small fraction of the total number of crimes committed each year.尽管性犯罪和暴力犯罪案件增长了10%，但它们在每年的罪案总数中所占比例仍然很小。

•They can produce it at a fraction of the cost of (= much more cheaply than) traditional methods.他们能够以大大低于传统方法的成本生产它。