If the results of the following two questions are non-zero natural numbers, find the minimum value of R and S (1) r divided by 5 times 1 / 3 (2) 7 / 6 times s divided by 5 / 3

If the results of the following two questions are non-zero natural numbers, find the minimum value of R and S (1) r divided by 5 times 1 / 3 (2) 7 / 6 times s divided by 5 / 3

Hello!
1. This problem can be seen: A, (R / 5) * (1 / 3) = R / 15 is not zero, the minimum natural number is 1, then r = 15
B. If R / (5 * 1 / 3) = 3R / 5 is not zero, the minimum natural number is 1, then r = 5 / 3
2. (6 / 7) * s / (5 / 3) = (6 / 7) * s * (3 / 5) = 18S / 35 the minimum natural number that is not zero is 1, then s = 35 / 18
It's not easy to judge because you use words. I'll give you an idea: because it's a non-zero natural number, when the result is 1, R and s are the minimum. Simplify the correct formula and make it equal to 1. At this time, R and s are the minimum. My formula is just listed after my understanding, which may not be the same as yours, As long as you do it my way
I wish you a happy life!