You can put this solution on YOUR website! A number divided by 1 = the number, so leave 1 alone.
Next comes 2: Are the numbers divisible by 2?
And 3, are both numbers divisible by 3?
And 4, are both numbers divisible by 4? What did you get? Are the numbers you got divisible by 2? By 3? No? OK, you're done simplifying.