5-7-13+15-22=...? -21+16-3,6+23/7-1,4-(-11/7)=...? -5,75+4 2/3-2 1/4-(-3 1/3)=...?? 5-7-13+15-22=...? -21+16-3,6+23/7-1,4-(-11/7)=...? -5,75+4 2/3-2 1/4-(-3 1/3)=...??