lcd(9, 6) = 18.
LCD(7, 9, 2) = 126.
1. Make sure that the denominators (bottom number) are the same by finding the LCD. Ex: The LCD of 3 and 9 is 18 because 3x6=18 and 9x2=18. 2. Change the denominator's number to the new LCD. Ex: Before: 1/3 and 6/9. After: 1/18 and 6/18. 3. Line the fractions up and add the numerator(top number). Ex: 1+6=7. 4. Dont add the denominator!! It will still be the same!! So the examples' answer would be 7/18. 5. Usually, you simplify fractions but since 7 is an odd number, this fraction will remain the same. Hope this helps!:)
2
70
126
If you meant LCD, the answer is LCD(9, 7, 18) = 126 But if you did mean LDC, then apologies. I have no idea what that LDC is in a mathematical context.
The LCD of 7/10 and 18/25 is 50.
18
lcd of 18 and 16 = 144
LCD(20, 6) = 60
LCD(18, 21) = 126
LCD(5, 18) = 90
LCD(7, 4) = 28
lcd(7, 97) = 679.
LCD of 7 and 37 is 259.
LCD(7, 77) = 77