3-4/5-3/10=? 8-5/12-1/3=?

Answer 1

3/1 - 4/5 - 3/10 =
30/10 - 8/10 - 3/10=19/10 = 1 9/10.

8/1 - 5/12 - 1/3 =
96/12 - 5/12 - 4/12 = 87/12 = 7 3/12 =
7 1/4.