柯林斯詞典proper fraction 1. N a fraction in which the numerator has a lower absolute value than the denominator, as or x/(3 + x2) 真分?jǐn)?shù) 返回 proper fraction劍橋詞典a fraction in which the number below the line is larger than the number above it （數(shù)學(xué)中的）真分?jǐn)?shù) 3/4 and 5/8 are proper fractions . 3／4和5／8都是真分?jǐn)?shù)。 返回 proper fraction