Answer:
40
Step-by-step explanation:
LCM = Lowest Common Multiple
Write down the prime factors of 5 and 8; you could use the factor tree method.
5 is a prime factor
8 = 2,2,2 (2^3)
There's non in common; No 5 within the prime factors of 8, no 2 within the prime factors of 5 (because 5 is a prime factor). So we multiply all of these together!
So 2 x 2 x 2 x 5 = 40
