90
Divide both by 5 15/90 = 3/18 divide both by 3 3/18 = 1/6
3
15 and 10 are both factors of 30.
any multiple of 90
18
The ratio of 18 and 15 is 18:15, but it can be reduced. 3 is the GCF of both numbers, so we can divide each by 3. The ratio of 18:15 after dividing both numbers by 3 is 6:5.
It has been issued in both 15 and 18 certificate cuts.
15 and 5 both go into every multiple of 15 .
The lowest common multiple of 15 and 18 is 90
The LCM of 15 and 18 is 90
Both 15 and 20 can go into 60, as they are both factors of that number.
They both go into 90.
90 = 15 x 6 = 18 x 5
18
Both 9 and 3 go into both numbers. 45/54 = 5/6 45/54 = 15/18
Divide both by 5 15/90 = 3/18 divide both by 3 3/18 = 1/6
You divide each number by a number that can go into both of the numbers evenly. Say a fraction is 15/20, you can divide both numbers by 5. So it would be 3/4. So 15/20 = 3/4. 15/18 divided by 3 you get 5/6 which is the lowest term.