1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 25 26 27 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 25 26 27 Operators Solutions 0 0 1 0 2 0 3 1 4 2 5 9 6 57 7 104 8 42 We could throw in some more operators though I doubt they would help I didn't try parentheses, floors, mod, sqrt, etcAdd 1 / 2 2 / 5 = 1 5 / 2 5 2 2 / 5 2 = 5 / 10 4 / 10 = 5 4 / 10 = 9 / 10 For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator The common denominator you can calculate as the least common multiple of both denominators LCM(2, 5) = 10In practice, it is enough to find the common denominator
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 numbers