5/6+7/8= 5/8+9/10= 1/3-1/5= 4/7+4/9= 6/11-3/7=3/8-3/16= 2/5+3/4= 2/3-1/4= 8/9-5/6= 2/9+1/18=2/3+1/6= 7/9-1/3= 1/7+1/8= 1/4-2/9= 7/8-6/13=2/1+32/1= 1/2+25/1= 1/6+/36-5/6= 3/9+9/4-12/9=12/6+9/3-3/9= 4/8...