/Answer:
The answer would be 18/10.
Explanation:
This is because when you add fractions with common denominators, like 9/10+9/10, you don't add the denominators. But if you multiply 9/10*2 it would be like 9/10*2/1 which would equal 18/10 still.
Answer:
1.8
9/10 times 2 equals 1.8
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