fraction noun

1 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.

2 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.