NOTATION AND NUMERATION. 227 



visor. If there is a remainder add the plus sign 

 (-(-) after the last figure in the quotient to indicate 

 that it is not a complete result. 



11. To reduce a fraction to a decimal, 

 (a). 2/5 equals what decimal? 



5)2.0(.4. 

 2jO 

 (Proof: .4=4/10=2/5) 



(b). What decimal is equivalent to %? 

 8) 3.000 (.375 

 24 

 60 



40 



40 



(Proof: .375=375/000=3/g) 



(c). What decimal equals 4/25? 



25)4.00(.16 



25^ 



150 



150 



Proof: .16=16/100=4/25) 



Rule. Annex ciphers to the numerator (the num- 

 ber above the line) and divide by the denominator 

 (the number below the line) and point off in the 

 quotient as many decimal places as ciphers added. 



12. To reduce a decimal to a common fraction, 

 (a). Reduce ,525 to a common fraction. 



525 25 5 5 5 



-. 1 = — , ■ — : — =% Ans. 



1,000 25 40 40 5 



