Question

27/245 in lowest terms

Answer 1

What are the factors of 27?

Answer 2

3*3*3

Answer 3

Yes. Is 3 a factor of 245? Remember there is a quick way to figure that out. Add the digits of 245 together (2+4+5) and see if that number is divisible by 3

Answer 4

2+4+5=11 which is not divisible by 3

Answer 5

So 27 and 245 share no common prime factors. 27/245 is already in lowest terms.