First, find out if you can divide it by 2, 3, 4, or 5. If you can, then both the numbers by that, and keep going until you can't divide the numbers anymore by whole numbers.
12 6 2
42 IS DIVISIBLE BY 2 21 IS DIVISIBLE BY 3 7
So 2/7 is your final answer!
HOPE THIS HELPED!
42/14 = 3
Yes.
12/42 = 2/7
15 will go into 42 two times with 12 left over.
You change it into a fraction form ( 42 over 100) and reduce.
In its simplest form it would be 7/12
2/7 = 12/42 5/6 = 35/42 12/42 + 35/42 = 47/42 or 1 and 5/42
12/70 - 19/42 = 0.17142 - 0.45238 = -0.28096
35/42 - 12/42 = 23/42
It reduces to 3/14
72/42 = 12/7
6/7