The LCD of 15 and 18 is 90 figure the rest out for yourselfs I know your not that stupid!
If these are denominators in some problem, then proceed as follows: 15=3x5 and 18 is 3x3x2, so you need 2 threes, 1 five and 1 two to cover you. That's 3x3x5x2 = 90.
least common denominator for 15 and 10 is 30, so 9/15 = 18/30 and 7/10 = 21/30
18
the least common multiple of 15,9,and 12 is 180.
A common denominator, though not the least, is 5616.
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.
18
360
3
72