To find the ratio of 3 yards to 18 inches, first, convert both measurements to the same unit for easier comparison.
1 yard is equivalent to 36 inches (since 1 yard = 3 feet and 1 foot = 12 inches, making 1 yard = 36 inches).
So, 3 yards would be
3
×
36
=
108
3×36=108 inches.
Now the ratio becomes 108 inches to 18 inches.
The simplified ratio is obtained by dividing both numbers by their greatest common factor, which is 18 in this case:
108 ÷ 18 = 6
18 ÷ 18 = 1
Therefore, the ratio of 3 yards to 18 inches is 6:1.