LCD(2, 5, 6, 3) = 30
the LCD of 2, 9 and 5 = 90
It is: 6-5 = 1
LCD(3, 5, 4, 2) = 60
The LCD or least common multiple of the numbers 5 and 2 is 10.
15
You don't normally calculate the lcd of a single number (fraction). You would normally take the lcd of two or more fractions. In that case, ONLY the denominators are relevant to find the lcd.
LCD stands for Lowest (or Least) Common Denominator. The LCD for a set of two or more numbers is the least number such that each member of the set is a factor of the LCD. So, for example, given the set {2, 4, 5}, LCD{2, 4, 5} = 60 since 2*30 = 60, 4*15=60 and 5*12 = 60. No non-zero number smaller than 60 is a multiple of all three members of the set.
10
Lcd of 5,4,2 is 20 because 5*4=20 and 2*10=20
10
The multiples of 10 are: 1, 2, 5, 10 The multiples of 5 are: 1 and 5. The multiples of 6 are: 1, 2, 3, and 6. The multiples of 8 are: 1, 2, 4, and 8. The number that they all have in common is 1, so the lcd is one.
There is none. 5 is a prime number, it isn't divisible by any number.