Answer:
19/18
Step-by-step explanation:
The GCF of 9, 3, and 18 is 18.
Each denominator must be multiplied to 18, and as a result what you multiply in the denominator MUST be multiplied in the numerator.
9 * 2 = 18
1 * 2 = 2
2/18
3 * 6 = 18
6 * 2 = 12
12/18
5/18
Add all three fractions together:
12/18 + 5/18 + 2/18 = 19/18
You graph it by the y axis and that have a number 1 and you graph it straight sideway
The answer to this question is

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can't be simplified because there is no same number that can divide numerator and denominator.
Answer:
The two numbers are -9 and 12
Step-by-step explanation:
-9+12=3 12--9=12+9=21