Answer: The LCD of
and
is 70. The fourth option is correct.
Step-by-step explanation:
The two Numbers are
and
.
The full form of LCD is least common denominator. It is the least number which the multiple of denominator.
The denominator of first number is 14 and the denominator of second number is 10.
Factor of 14 are 2 and 7. Factor of 10 are 5 and 2.
So the factors of LCD are 2,7,2,5. Since 2 is common in both so we will take the factor 2 one time.

Therefore, the LCD of given numbers is 70.