No. 21 is not evenly divisible by 48.
It goes: 1008/21 = 48 times
0.4375
75
21.375 times exactly.
21/48 = 7/16
The GCF of 21, 45, and 48 is: 3
The LCM is 1008.
If 48 has an opposite, it would be -48.
48 - 21 = 27
21-5= 16x3= 48 The correct answer of 21 minus 5 times by 3 is 48.
The factors of 21 are 1, 3, 7, and 21. The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, and 48.
The GCF is 1.