3/7 х 14/15 + 0,3 х 8/9 х 15/16 = ?8/21 х 14/15 х 9/16 - 11/13 х 26/121 = ?

Question

3/7 х 14/15 + 0,3 х 8/9 х 15/16 = ?
8/21 х 14/15 х 9/16 - 11/13 х 26/121 = ?

Answer 1

1. 3/7 х 14/15 + 0,3 х 8/9 х 15/16 =0,65
2. 8/21 х 14/15 х 9/16 - 11/13 х 26/121 =0,0(18)