The factors of 18 are:
1, 2, 3, 6, 9, 18
The factors of 20 are:
1, 2, 4, 5, 10, 20
The common factors are: 1, 2
The Greatest Common Factor (GCF) is: 2
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Twenty minus one.
Two twenty-seven times or twenty-seven twice, three eighteen times or eighteen thrice, and six nine times or nine six times.
Consecutive even numbers that sum to thirty-eight (38) are eighteen (18) and twenty (20). Twenty (20) is larger than eighteen (18).
It is: 18/27 = 2/3 simplified