A common denominator of 13 and 14 is a denominator into which 13 and 14 both divide. All multiples of their lowest common multiple (which is 182) can be used, namely any one of:
182, 364, 546, 728, 910, 1092, 1274, 1456, 1638, 1820, 2002, 2184, 2366, 2548, 2730, 2912, 3094, 3276, 3458, 3640, 3822, 4004, 4186, 4368, 4550, 4732, 4914, 5096, 5278, 5460, 5642, 5824, 6006, 6188, 6370, 6552, 6734, 6916, 7098, 7280, 7462, 7644, 7826, 8008, 8190, 8372, 8554, 8736, 8918, 9100, 9282, 9464, 9646, 9828, 10010, 10192, 10374, 10556, 10738, 10920, 11102, 11284, 11466, 11648, 11830, 12012, 12194, 12376, 12558, 12740, 12922, 13104, 13286, 13468, 13650, 13832, 14014, 14196, 14378, 14560, 14742, 14924, 15106, 15288, 15470, 15652, 15834, 16016, 16198, 16380, 16562, 16744, 16926, 17108, 17290, 17472, 17654, 17836, 18018, 18200, ...
The common denominator of 9 and 13 is 1
The least common denominator of 13 and 52 is52
A common denominator, though the least, is 260.
20 and 14 are both integers. The common denominator of 20/1 and 14/1 is 1. The least common multiple is 140.
42
No because 13 Is not a common denominator so it would not count as simplest
The common denominator of 9 and 13 is 1
The least common denominator of 3 and 13 is 39.
The least common denominator of 13 and 52 is52
A common denominator, though not the least one, is 14*49 = 686.
The common denominator is 28.
The greatest common denominator is infinite.
A common denominator, though not the least, is 168.
A common denominator, though the least, is 260.
A common denominator, though not the least one, is 14*12 = 168.
20 and 14 are both integers. The common denominator of 20/1 and 14/1 is 1. The least common multiple is 140.
The LCM is 52