How to multiply 5/4 by 9/4?
        
            
        
        
            - Multiply both numerators together: 5 × 9 = 45
 
            - Multiply both denominators together: 4 × 4 = 16
 
            - Combine the results to get the new fraction: 45/16
 
                    
        
            The result of multiplying 5/4 with 9/4 is :
                            45/16 (or 2.8125 in its decimal form)