The multiplication of fractions  
Fractions  
2. The numerical multiplication of fractions.  
To multiply
fractions you don't have to find the least common denominator, they are
multiplied directly:  Multiply their numerators and the result will be the numerator.  Multiply their denominators and the result will be the denominator. 


Eduardo Barbero Corral  
Spanish Ministry of Education. Year 2007  
Except where otherwise noted, this work is licensed under a Creative Common License