5 7/8+6 3/10= 6 3/8+2 5/9= 1 8/21+4 3/14+2 2/7= 8 9/14-3 3/7= 7 5/12- 3 7/24= 12 11/12-5 13/18=
5 7/8+6 3/10=12 7/40 6 3/8+2 5/9=8 67/72 1 8/21+4 3/14 +2 2/7=7 11/12 8 9/14-33/7=5 3/14 7 5/12-3 7/24=8 17/24 12 11/12-5 13/18=17 5/18