How to find the lcm of 4 and. 2 2/3

The lowest common multiple or least common multiple is the lowest multiple two numbers have in common.
you could either:
•list the multiples
eg. What is the lowest common multiple of 2 and 3?
Multiples of 2: 2, 4, 6, 8...
Multiples of 3: 3, 6, 9...
The lowest common multiple of 2 and 3 is 6.

• or factors.
eg. The prime factors of 25 are 5 x 5.
The prime factors of 30 are 2 x 3 x 5.
Remove the 5 that 25 and 30 have in common as a prime factor.
Multiply 25 by the remaining prime factors of 30.
25 x 2 x 3 = 150.
The lowest common multiple of 25 and 30 is 150.

that’s not how to find the lowest of those numbers, but that’s how to do it :))

Polar coordinates is 8,9