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fraction 
  n 
1  (Maths) 
a a ratio of two expressions or numbers other than zero 
b any rational number that can be expressed as the ratio of two integers, a/b, where b does not equal a, 1, or 0, and a does not equal 0 
2 any part or subdivision 
a substantial fraction of the nation  
3 a small piece; fragment 
4  (Chem) a component of a mixture separated by a fractional process, such as fractional distillation 
5  (Christianity) the formal breaking of the bread in Communion 
6 the act of breaking 
  vb 
7 tr to divide 
  (C14: from Late Latin fractio a breaking into pieces, from Latin fractus broken, from frangere to break) 

common fraction 
  n  another name for  →  simple fraction 
complex fraction 
  n  (Maths) a fraction in which the numerator or denominator or both contain fractions, (Also called)  compound fraction 
compound fraction 
  n  another name for  →  complex fraction 
continued fraction 
  n a number plus a fraction whose denominator contains a number and a fraction whose denominator contains a number and a fraction, and so on 
decimal fraction 
  n  another name for  →  decimal  →  1 
improper fraction 
  n a fraction in which the numerator has a greater absolute value or degree than the denominator, as 7/6 or (x2 + 3)/(x + 1) 
packing fraction 
  n a measure of the stability of a nucleus, equal to the difference between its mass in amu and its mass number, divided by the mass number 
partial fraction 
  n  (Maths) one of a set of fractions into which a more complicated fraction can be resolved 
proper fraction 
  n a fraction in which the numerator has a lower absolute value than the denominator, as ½ or x/(3 + x2) 
simple fraction 
  n a fraction in which the numerator and denominator are both integers expressed as a ratio rather than a decimal, (Also called)  common fraction, vulgar fraction 
vulgar fraction 
  n  another name for  →  simple fraction 



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