20 divided into 420 = 0.047619047619047616
0.0476
0.05
the greatest common factor of 2600 and 420 is 20. when 2600 is divided by 20 you get 130 and when 420 is divded by 20 uget 21. I tried using higher numbers but they did not work so the answer has to be 20.
420 divided by4 = 105
70
0.0333
2/3 divided by 420 = 2/(3*420) = 2/1260 = 0.00587
1.1053
420
8.9362
0.015
60