10 - 3 4/7 - 1 4/7 - 3 6/7 =
= 70/7 - 25/7 - 11/7 - 27/7 =
= 7/7 = 1,
9 4/5 + 1 2/5 =
= 10 6/5 = 11 1/5,
12 4/7 - 3 4/7 = 9
10 - 3 4/7 - 1 4/7 - 3 6/7 =
= 70/7 - 25/7 - 11/7 - 27/7 =
= 7/7 = 1,
9 4/5 + 1 2/5 =
= 10 6/5 = 11 1/5,
12 4/7 - 3 4/7 = 9