mohon bantuannya no 15

15)   4 ³/₈  x  5 ²/₆  +  35%  =   35/8  x  32/6  +  35/100
                                       
                                           =  70/3  +  7/20
 
                                           =  1.400/60  +  21/60

                                           =  1.421/60

                                           =   23 ⁴¹/₆₀