1, 6 and 11 / 6 minus 14 / 5 plus 3 / 11 / 6 and 2, 1 / 3 plus 2 / 2 divided by 2 plus 3 / 3

1, 6 and 11 / 6 minus 14 / 5 plus 3 / 11 / 6 and 2, 1 / 3 plus 2 / 2 divided by 2 plus 3 / 3

6 and 6 out of 11 - (5 out of 14 + 3 and 6 out of 11)
=6 and 11 6-3 and 11 6-14 5
=5 / 3-14
=37 out of 14
(1 / 3 + 2 / 2) / (2 + 3 / 3)
=17 / 6 ／ 17 / 3
=1 / 2

4 / 16 plus (4 / 2 / 7 minus 1.8) is simple and convenient

16 and 4 / 5 plus (2 and 4 / 7 minus 1.8)
=16.8-1.8 + 2 and 4 / 7
=15 + 2 and 4 / 7
=17 and 4 / 7

5 / 16 minus 7 / 24 = 1 / 48 ()=（
5 / 16 minus 7 / 24 = 1 / 48 ()

5 / 16 minus 7 / 24 = 15 out of 48 (14 out of 48) = (1 out of 48)