柯林斯词典improper fraction 1. N a fraction in which the numerator has a greater absolute value or degree than the denominator, as or (x² + 3)/(x + 1) 假分數 返回 improper fraction剑桥词典a fraction in which the number below the line is smaller than the number above it 假分數 3/2 is an improper fraction . 3/2是假分數。 返回 improper fraction