Respuesta :
11/4+1/5-12/10 =(55+4-24)/20 =35/20 =7/4
39/8 - 23/4 -1/2 =(117 - 138 -2)/24 =23/24
115/3 -11/3 +8/15=(345 -55 +8)/15 =298/15
39/8 - 23/4 -1/2 =(117 - 138 -2)/24 =23/24
115/3 -11/3 +8/15=(345 -55 +8)/15 =298/15