The GCF is 3.
The factors of 42 are 1,2,3,6,7,14,21,42. The factors of 66 are 1,2,3,6,11,22,33,66
The factors of 12 are: 1, 2, 3, 4, 6, 12 The factors of 25 are: 1, 5, 25 The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42 The factors of 75 are: 1, 3, 5, 15, 25, 75
The common factors are: 1, 2, 3, 6
The GCF is 6.
42 and 66 have the greatest common divisor of 6, so you can divide both factors by 6 to get 7/11.
42, 48, 54, 60, 66, 72.
The factors of 21 are: 1, 3, 7, 21 The factors of 75 are: 1, 3, 5, 15, 25, 75
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42.The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90.The common factors are: 1, 2, 3, 6The Greatest Common Factor (GCF) is: 6
66/75 = 0.88
42:42,84,126,168,210,252,294,336,378,420,462 66:66,132,198,264,330,396,462
75 percent of 66 = 49.5
30, 42, 66, 70 and 78.