Adult Numeracy N2/L1.3
Recognise equivalencies between common fractions, percentages and decimals (e.g. 50% = 1/2 or 0.25 = 1/4) and use these to find part or whole-number quantities (a) Know common fraction equivalents, e.g. half, quarters, fifths, tenths.
Adult Numeracy Core Curriculum, Basic Skills Agency / DfEE (2001, 2006)