Question

A computer scans every 2.75 days and another scans every 3.5 days

how many days to scan on the same day?

Answer 1

Alright, so we have to find the LCM of 2.75 and 3.5.

A good start would be to multiply them together to get 9.625, but we want a whole day!

This would be every 77 days :)