1/5
20/28Divide both the numerator and denominator by 420/28 = 5/7
17/105
28
600/420 = 10/7
It is: 420
the lowest common multiple of 28 and 30 is 420.
The lowest common factor is: 1
To find the greatest common factor (GCF) of 126 and 420, we first need to list the factors of each number. The factors of 126 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, and 126. The factors of 420 are 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, and 420. The GCF of 126 and 420 is 42, as it is the greatest factor that both numbers share.
The lowest common multiple (LCM) of 5, 7 and 12 is 420.
The LCM is: 7,980
The LCM is: 420