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Best Answer
Since 21 and 18 have the common factor of 3, reduce 'em to get:
21 to 18
= (3 * 7) to (3 * 6)
= 7 to 6
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What is 21 to 75 in simplest form as a ratio?
7 to 25
What is the fraction 18 over 21 in simplest form?
18/21 in simplest form is 6/7.
What is the fraction 18-21 in simplest form?
39
What is simplest form of 21 to 54?
21/54 = 7/18
What is the ratio or rate as a fraction in simplest form for 21 out of 91?
21/91 = 3/13
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what is 28 over 21 as a ratio in simplest form?
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