Respuesta :

35 and 1/4=35+1/4
12 and 1/2=12+1/2=12+2/4

35 and 1/4-12 and 1/2=
35+1/4-(12+2/4)=
35+1/4-12-2/4=
35-12+1/4-2/4=
23-1/4=
22+4/4-1/4=
22+3/4=
22 and 3/4