0
Anonymous
The sum is: 72+9 = 81
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72
-72/9 = -8
18 + 36 + 45 + 9 + 9 + 54 + 27 + 72 + 81 = 351
84t + 56.
Fractions that are not equivalent to 36/72 are 1/4, 3,8, 37/72, 7/9 and many, many others.