5-(19/22-9/22)= 4-(17/25+11/25)= 12-133/101-166/101=
1)5-(19/22-9/22)=5-5/11=4 6/11 2)4-(17/25+11/25)=4-1 3/25=2 22/25 3)12-133/101-166/101=12+33/101=12 33/101