You should mlutiply them.
If you mean: 18*27 = 18m+18*7 then the value of m works out as 20
-16
9 + 9 = 18
27 * 5 / 18 = 15/2 = 7.5
27/9 = 3 x 18 = 54
you multiply 27 times a number then you multiply 18 times a different number and see if they come out with the same answer.
27*(18,518 + 18,519) = 27* 37,037 = 999,999
It is: 2/3 times 27 = 18
1.5
18 times with a remainder of 26
27 times with a remainder of 14
27 times with a remainder of 14, or 27.78 times.