Respuesta :

1. The lowest common multiple between 15 and 12 is 60.
    So, the new denominator of the fraction become 60.
2. Because 15*4= 60 ; 12*5 =60
    For sustaining the balance, we should multiply 24 (the first molecule) to 4 times and multiply 12 (the second molecule) to 5 times.
   Like, 24*4 and 32*5
3.New denominator :60
   New molecules : 24*4 + 32*5 = 256
   Thus, 256/60
4.Ruduce of a  fraction : 256/60 = 64/15