1 and 3 are the common factors of 21 and 36.
3. 7x3= 21 12x3= 36
One and three
21/7 = 3 21/3 = 7 36/2 = 18 36/4 = 9 36/6 = 6 36/12 = 3 36/18 = 2 and, of course, both 21 and 36 can be divided by 1 and themselves
15
36 - 21 = 1536 - 21 = 1536 - 21 = 1536 - 21 = 15
21 + 15 = 36
16:36:21 PST is equivalent to 4:36:21 PM Pacific Standard Time.
36
It is: 21/36 = 7/12 simplified
3 goes into 36 and 63 evenly.
21/36 x 100 = 58.3 recurring (that is, 58.3333..) percent.
The LCM is 252.