1)
2)
8 6/21 +(-11,4) +2 5/7=
174/21 -114/10 +19/7=
174/21 -114/10 +57/21=
231/21 -114/10 =
2310/210-2394/210=
-84/210=-12/30=-4/6
1)
2)
8 6/21 +(-11,4) +2 5/7=
174/21 -114/10 +19/7=
174/21 -114/10 +57/21=
231/21 -114/10 =
2310/210-2394/210=
-84/210=-12/30=-4/6