We define the multiples of 21/40 as the product of any integer multiplied by 21/40. Therefore, to create a list of multiples of 21/40 we start by multiplying 21/40 by one, then we multiply 21/40 by two, then we multiply 21/40 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 21/40 because the list goes on forever. However, here is the math to calculate the beginning list of multiples of 21/40.
21/40 × 1 = 21/40
21/40 × 2 = 42/40
21/40 × 4 = 63/40
21/40 × 4 = 84/40
21/40 × 5 = 105/40
21/40 × 6 = 126/40
21/40 × 7 = 147/40
21/40 × 8 = 168/40
21/40 × 9 = 189/40
21/40 × 10 = 210/40
21/40 × 11 = 231/40
21/40 × 12 = 252/40
We have simplified the fractions above for you. Below are the multiples of 21/40 in their lowest possible terms:21/40 = 21/40
42/40 = 1 1/20
63/40 = 1 23/40
84/40 = 2 1/10
105/40 = 2 5/8
126/40 = 3 3/20
147/40 = 3 27/40
168/40 = 4 1/5
189/40 = 4 29/40
210/40 = 5 1/4
231/40 = 5 31/40
252/40 = 6 3/10
As we stated above, the list of multiples of 21/40 goes on forever because the product of 21/40 multiplied by any whole number (integer) is a multiple of 21/40.
You can also create a list of multiples of 21/40 if you keep adding 21/40 like this:21/40
21/40 + 21/40 = 42/40
21/40 + 21/40 + 21/40 = 63/40
21/40 + 21/40 + 21/40 + 21/40 = 84/40
∞
Again, the list can go on forever, because you can continue adding 21/40 to the list. Therefore, the list of multiples of 21/40 is ∞ (infinite).
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Multiples of 21/41
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