28
3
The LCM is 84
Use a factor tree. 84 42,2 21,2,2 7,3,2,2
Yes, 3 can go into 84. When you divide 84 by 3, you get 28, which is a whole number. This means that 3 is a factor of 84, as it divides evenly into it without leaving a remainder.
84 divide by 112 = 0.75
Divide them by any of these: 1, 2, 3, 4, 6, 12.
21
1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.
0.0238
84 42,2 21,2,2 7,3,2,2
6/84 = 0.071428571
The following: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.