The 4th factor would be 3. You would find this out through a factor tree. If you don't know the original number when you start you look at your numbers. A factor of 1 usually goes with the highest number, assuming that the number 6 is the highest factor, that would be the original number. As 2 is the other known factor than we know that 3 has to be the last factor, because 2 x 3 = 6. It cannot be the number 12 because then there would be 6 factors not the needed 4.
Answer:
I don't know I don't know I don't know
It depends on what its asking for and what dimension it is. If its 2D, the area is lengthXwidth, and perimeter you would add all the side lengths. If its 3D, volume is lengthXwidthXheigth.
4 and 8 twelves - 1 and 11 twelves
4 8/12 - 1 11/12
= 2 3/12
Answer : 2 3/12 simplified to 2 1/4
Check answer:
2 9/12 + 1 11/12 = 4 8/12
Answer:
look at the picture above
