Noun | 1. | common fraction - the quotient of two integers fraction - the quotient of two rational numbers half, one-half - one of two equal parts of a divisible whole; "half a loaf"; "half an hour"; "a century and one half" one-third, third, tierce - one of three equal parts of a divisible whole; "it contains approximately a third of the minimum daily requirement" two-thirds - two of three equal parts of a divisible whole fourth part, one-fourth, one-quarter, quarter, quartern, twenty-five percent, fourth - one of four equal parts; "a quarter of a pound" three-fourths, three-quarters - three of four equal parts; "three-fourths of a pound" one-seventh, seventh - one part in seven equal parts one-eighth, eighth - one part in eight equal parts one-sixtieth, sixtieth - one part in sixty equal parts one-sixty-fourth, sixty-fourth - one part in sixty-four equal parts one-thousandth, thousandth - one part in a thousand equal parts one-ten-thousandth, ten-thousandth - one part in ten thousand equal parts one-hundred-thousandth - one part in a hundred thousand equal parts one-millionth, millionth - one part in a million equal parts one-hundred-millionth - one part in a hundred million equal parts one-billionth, billionth - one part in a billion equal parts one-trillionth, trillionth - one part in a trillion equal parts one-quadrillionth, quadrillionth - one part in a quadrillion equal parts one-quintillionth, quintillionth - one part in a quintillion equal parts |