Well, darling, 17 over 18 minus 2 over 3 is the same as 17 times 3 minus 2 times 18, all over 18 times 3. So, that gives you 51 minus 36 over 54, which simplifies to 15 over 54, or 5 over 18. Math doesn't have to be a drag, honey!
3/18
17/18
It is -25/36
(11/18) - (1/6) = (11/18) - (3/18) = (11-3)/18 = 8/18 = 4/9
3/4 − 3/10 = 18/40 or 9/20
18/27 minus 44/81 is 10/81
5/6 − 2/3 = 3/18 which simplifies to 1/6
1/3 − 1/6 = 3/18 which reduces to 1/6
1,718 minus 2/3 is 1,717 1/3.17/18 minus 2/3 is 5/18.
6/7 - 2/3 = 18/21 - 14/21 = 4/21
6/7 - 2/3 = 18/21 - 14/21 = 4/21