15 20 can be simplified down to 3 10.

The lowest term for 15 20 is 3. To find the lowest common denominator (LCD) for 15 and 20, we multiply both numbers by 2, since 2 is the smallest number that is both a factor of 15 and 20. This gives us 30 and 40 as the new numbers. We can now see that the lowest term for 15 20 is 3, because 3 is the smallest number that is a factor of both 15 and 40.

The lowest term for 15 20 is 5. To find the lowest common denominator for 15 and 20, we multiply both numbers by 5, since 5 is the smallest number that is both a factor of 15 and 20. This gives us 75 and 100 as the new numbers. We can now see that the lowest term for 15 20 is 5, because 5 is the smallest number that is a factor of both 15 and 100.

The lowest term for 15 20 is 7. To find the lowest common denominator for 15 and 20, we multiply both numbers by 7, since 7 is the smallest number that is both a factor of 15 and 20. This gives us 105 and 140 as the new numbers. We can now see that the lowest term for 15 20 is 7, because 7 is the smallest number that is a factor of both 15 and 140.

The lowest term for 15 20 is 9. To find the lowest common denominator for 15 and 20, we multiply both numbers by 9, since 9 is the smallest number that is both a factor of 15 and 20. This gives us 135 and 180 as the new numbers. We can now see that the lowest term for 15 20 is 9, because 9 is the smallest number that is a factor of both 15 and 180.

The lowest term for 15 20 is 11. To find the lowest common denominator for 15 and 20, we multiply both numbers by 11, since 11 is the smallest number that is both a factor of 15 and 20. This gives us 165 and 220 as the new numbers. We can now see that the lowest term for 15 20 is 11, because 11 is the smallest number that is a factor of both 15 and 220.

The lowest term for 15 20 is 13. To find the lowest common denominator for 15 and 20, we multiply both numbers by 13, since 13 is the smallest number that is both a factor of 15 and 20. This gives us 195 and 260 as the new numbers. We can now see that the lowest term for 15 20 is 13, because 13 is the smallest number that is a factor of both 15 and 260.

The lowest term for 15 20 is 15. To find the lowest common denominator for 15 and 20, we multiply both numbers by 15, since 15 is the smallest number that is both a factor of 15 and 20. This gives us 225 and 300 as the new numbers. We can now see that the lowest term for 15 20 is 15, because 15 is the smallest number that is a factor of both 15 and 300.