30 is the lcm of both the numbers
The answer is C 1/2 hope this helps :)
Option A:
The length of diagonal JL is
.
Solution:
In the quadrilateral, the coordinates of J is (1, 6) and L is (7, 3).
So that, 
To find the length of the diagonal JL.
Using distance formula:






units
The length of diagonal JL is
.
Option A is the correct answer.
Answer:
21
Step-by-step explanation:
The smallest number that can go into both 3 and 7 as our denominators is 21. This can be worked about by multiplying them together.
(FYI: In some cases, if the product is even, it may not always work to multiply them together)