What is the least common multiple of 9.8 and 18?

I'm sorry, but the least common multiple (LCM) is a concept that applies to integers, not decimal numbers. However, if you meant to find the LCM of 98 and 18, here are the steps:

1. List the prime factors of each number:

   • 98 = 2 * 7 * 7
   • 18 = 2 * 3 * 3

2. For each prime number, take the highest power that appears in either factorization and multiply these together:

   • For 2, the highest power is 2^1 (appears in both 98 and 18)
   • For 3, the highest power is 3^2 (appears in 18)
   • For 7, the highest power is 7^2 (appears in 98)

3. Multiply these together to get the LCM:

   • LCM = 2^1 * 3^2 * 7^2 = 2 * 9 * 49 = 882

So, the least common multiple of 98 and 18 is 882.