74 ARITHMETIC, 



. Subtraction of Vulgar Fractions. 



RULE. 



Prepare the fractions as in addition, and the' difference, 

 of the numeratorSj written above the common denomiaa* 

 tor, will give the difference of the fractions required. 



EXAMPLES. 



1. From y take ^ of -f- 



^of f=:, and|= -, 



3 



•.• YT — i^=TT=T ^^''^- anwt'tr renuireQ. 



2. From ^ take f. An.. ^^1 



3. From g6~ take 144. Ans. Si^-f. 



4. From 14^ take y of 19, Ans. i~. 



5. From -ll. take -^^s. Ans. 93. 3d. 



6. From j-oz, take ydwt. , Ans.- i idwt. 3gr. 



7. From 7 weeks take ^~ days. Ans. 5W. 4d. 7h. 12'. 



Multiplication of Fulgas. Fractions*. 



RULE.* 



Reduce compound fractions to single ones, and mixed 

 numbers to improper fractions ; then the product of the 

 numerators is the numerator ; and the product of the^ de- 

 nominators, the denominator of the product required. 



EXAMPLES'. 



* Multiplication by a fraction implies the taking some part or 

 parts of the multiplicand, and, therefore, may be truly expressed 

 by a compound fraction. Thus ^ multiplied by f is the same as ^ 

 of -^ ; and as the directions of the rule agree with the method al- 

 ready given to reduce these fractions to single ones, it is shewn to 

 be right. 



