What is the least common denominator of 3 5 6 7?

Answer 1

Usually, if simple things won't work, you must start multiplying the numbers to find a least common denominator.

3, 5, 6, 7

Start by multiplying the two largest numbers and seeing if the answer is divisible by the other numbers.

7*6=42 42 is not divisible by 5, so this will not work.

If not, try multiplying the three largest numbers.

7*6*5=210 210 is divisible by all 4 numbers, so this will work

The answer is 210.

Answer 2

42