280
LCD(10, 8, 7) = 280.
840
If that's 3/8 and 7/10, the LCD is 40.If not, it's 13490
LCD(7, 5, 10) = 10
LCD(15, 7, 8) = 840.
3390. If you meant to write 6, 7, 8 and 10, that's 840.
The LCD is 56. The two have no common factors, so the LCD is their product, 7 x 8 =56
LCD is 24
56 is the lcd of 8 and 7. You can get this by multiplying 8x7. 8 and 7 have no common factors; that is why you multiply the two numbers to get the lcd.
The LCD or LCM is 360
It is done by: 7*8 = 56
70