frac·tion 
/ˈfrækʃən/ noun
plural frac·tions /ˈfrækʃən/ noun [count] 1 mathematics : a number (such as 1⁄2 or 3⁄4) which indicates that one number is being divided by another ; also : a number (such as 3.323) that consists of a whole number and a decimal 2 : a part or amount of something
▪ a fraction of an inch/second ▪ We've described only a small fraction [=portion] of the available options. ▪ The new program will provide similar benefits at a fraction of the cost (of the old one). [=at much less cost; for much less money] ▪ The new technology allows us to complete the job in a fraction of the time [=in much less time] it formerly took.
▪ a fraction of an inch/second ▪ We've described only a small fraction [=portion] of the available options. ▪ The new program will provide similar benefits at a fraction of the cost (of the old one). [=at much less cost; for much less money] ▪ The new technology allows us to complete the job in a fraction of the time [=in much less time] it formerly took.
