-18
-5
23
3 minus 3/18 is 2 5/6
17/18 minus 2/3 is 5/18
-5 - 13 = -18
1,718 minus 2/3 is 1,717 1/3.17/18 minus 2/3 is 5/18.
9 + 2 + 30 - 5 + 18 - 19 = -1
5 1/9 minus 2 5/6 can be solved by changing the 9 and 6 to a common denominator of 18. 5 2/18 minus 2 15/18 is your new problem. Now you need to borrow from the 5 to make 2/18 large enough to subtract 15/18. 4 20/18 minus 2 15/18 is your new problem. Now you subtract the whole numbers and then then numerators of the fractions. 2 5/18 is your answer.
7/18 - 5/18 = 2/18 = 1/9
1 / 2 * 18 - 5 = 9 - 5 = 4
5 + (2 x 7) - (18/5) = 15.4