We define the multiples of 21/9 as the product of any integer multiplied by 21/9. Therefore, to create a list of multiples of 21/9 we start by multiplying 21/9 by one, then we multiply 21/9 by two, then we multiply 21/9 by three, and so on.
To multiply a fraction by an integer, we leave the denominator alone and multiply the numerator by the integer. It is impossible to give you a list of all multiples of 21/9 because the list goes on forever. However, here is the math to calculate the beginning list of multiples of 21/9.
21/9 × 1 = 21/9
21/9 × 2 = 42/9
21/9 × 4 = 63/9
21/9 × 4 = 84/9
21/9 × 5 = 105/9
21/9 × 6 = 126/9
21/9 × 7 = 147/9
21/9 × 8 = 168/9
21/9 × 9 = 189/9
21/9 × 10 = 210/9
21/9 × 11 = 231/9
21/9 × 12 = 252/9
We have simplified the fractions above for you. Below are the multiples of 21/9 in their lowest possible terms:21/9 = 2 1/3
42/9 = 4 2/3
63/9 = 7
84/9 = 9 1/3
105/9 = 11 2/3
126/9 = 14
147/9 = 16 1/3
168/9 = 18 2/3
189/9 = 21
210/9 = 23 1/3
231/9 = 25 2/3
252/9 = 28
As we stated above, the list of multiples of 21/9 goes on forever because the product of 21/9 multiplied by any whole number (integer) is a multiple of 21/9.
You can also create a list of multiples of 21/9 if you keep adding 21/9 like this:21/9
21/9 + 21/9 = 42/9
21/9 + 21/9 + 21/9 = 63/9
21/9 + 21/9 + 21/9 + 21/9 = 84/9
∞
Again, the list can go on forever, because you can continue adding 21/9 to the list. Therefore, the list of multiples of 21/9 is ∞ (infinite).
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Multiples of 21/10
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