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general::
noun part/amount ADJ. large, significant, sizeable, substantial | mere, small, tiny A mere fraction of available wind energy is currently utilized. PREP. ~ of Why not grow your own fruit at a fraction of the price? PHRASES just/only a fraction The average income is high, though many people earn just a fraction of that average. exact part of a number ADJ. vulgar | decimal | improper 11/8 is an improper fraction, equivalent to one and three-eighths. VERB + FRACTION express sth as Express 25% as a fraction.
Oxford Collocations Dictionary