(32-19 3/11+4 9/11)+(7 7/11-4 10/11)=?
1) 32 - 19 3/11= 12 8/11 2) 12 8/11 + 4 9/11= 16 17/11= 17 6/11 3) 17 6/11 + 7 7/11= 24 13/11 4) 24 13/11 - 4 10/11= 20 3/11