Question

What will be the lowest common denominator for the fractions 2/3 and 4/5?
A. 30
B. 18
C. 9
D. 15

Answer 1

the answer is 15......you can look at it as 5 times 3 or just because that is the lowest number that they both go into. For example 3 does not go into 5 or 10 so the next multiple of 5 which is 15 is a number that 3 does go into therefore that is the lowest common denominator.


hope this helps :)

Answer 2

ok thanks