Find the missing number

/10 = 6/20

To find the missing number, we can set up a proportion:

x/10 = 6/20

To solve for x, we can cross multiply:

20x = 10 * 6
20x = 60

Now, divide both sides by 20 to isolate x:

x = 60/20
x = 3

Therefore, the missing number is 3.