We define the multiples of 15/20 as the product of any integer multiplied by 15/20. Therefore, to create a list of multiples of 15/20 we start by multiplying 15/20 by one, then we multiply 15/20 by two, then we multiply 15/20 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 15/20 because the list goes on forever. However, here is the math to calculate the beginning list of multiples of 15/20.
15/20 × 1 = 15/20
15/20 × 2 = 30/20
15/20 × 4 = 45/20
15/20 × 4 = 60/20
15/20 × 5 = 75/20
15/20 × 6 = 90/20
15/20 × 7 = 105/20
15/20 × 8 = 120/20
15/20 × 9 = 135/20
15/20 × 10 = 150/20
15/20 × 11 = 165/20
15/20 × 12 = 180/20
We have simplified the fractions above for you. Below are the multiples of 15/20 in their lowest possible terms:15/20 = 3/4
30/20 = 1 1/2
45/20 = 2 1/4
60/20 = 3
75/20 = 3 3/4
90/20 = 4 1/2
105/20 = 5 1/4
120/20 = 6
135/20 = 6 3/4
150/20 = 7 1/2
165/20 = 8 1/4
180/20 = 9
As we stated above, the list of multiples of 15/20 goes on forever because the product of 15/20 multiplied by any whole number (integer) is a multiple of 15/20.
You can also create a list of multiples of 15/20 if you keep adding 15/20 like this:15/20
15/20 + 15/20 = 30/20
15/20 + 15/20 + 15/20 = 45/20
15/20 + 15/20 + 15/20 + 15/20 = 60/20
∞
Again, the list can go on forever, because you can continue adding 15/20 to the list. Therefore, the list of multiples of 15/20 is ∞ (infinite).
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Multiples of 15/21
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