Simplification ratio, ratio: 3 / 4 hours; 30 minutes

Simplification ratio, ratio: 3 / 4 hours; 30 minutes

First, in the same unit, 3 / 4 hours = 45 minutes, 45:30 = 3:2
30 minutes = 1 / 2 hours, 3 / 4:1 / 2 = 3:2

3:6 to 3:8, 3:10 to 3 hours to 30 minutes, 2.8 to 4:3, all of which give me a simplified ratio and a ratio

3 / 6: 3 / 8
=1/3：1/4
=4：3
Ratio = 4 / 3
Three out of ten hours is better than 30 minutes
=18: 30
=3：5
Ratio = 0.6
2.8 to 4 / 3
=14 out of 5: 4 out of 3
=21：10
Ratio = 2.1

What is the greatest common factor and the least common multiple of X and y

y
x

The greatest common factor of X and Y is______ The least common multiple is______ ．

From the meaning of the question, we can see that x is a multiple of Y, so the greatest common factor of X and Y is y, and the least common multiple is x; so the answer is: y; X