105
the LCD of 5 and 7 is explanation: 7: 14, 21, 28, 35, 42, 49, 56, 63, 70 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 so the LCD is 5 and7 is 35
LCD(9, 21) = 63
LCD(49, 21) = 147
LCD(13, 16) = 208
There IS only one LCD. The word least is a superlative, which means there can be only one. LCD(79, 90) = 7110
the LCD of 5 and 7 is explanation: 7: 14, 21, 28, 35, 42, 49, 56, 63, 70 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 so the LCD is 5 and7 is 35
35
LCD(9, 21) = 63
LCD(18, 21) = 126
It is: 630
420
35
105
LCD(21, 13, 14, 15) = 2730
5 is a factor of 35, so the LCD is 35.
21
It is: 70