Can you tell me the standard recommendation for the shelf-life of over-the-counter eye drops once opened? My drops both have expiration dates of about 14 months from purchase, but it states nothing about once it is opened. Are they safe to continue using after several months?
Mixed number. A mixed number is a whole number plus a fraction. Here are a few mixed numbers: 1 1/2 1 1/3 2 1/2 2 2/5 1 4/5 You can convert a mixed number to an improper fraction by finding the number of unit fractions in the whole number and then adding the fractional part of the whole number. This sounds hard, but it really isn't.
LCM of 12 and 18 and 24? The least common multiple is the smallest positive number that is a  multiple of two or more numbers.    12: 36, 48, 60, 72    18: 36, 54, 72    24: 48, â¦ 72    The least common multiple for 12, 18 and 24 and is 72.6 people found this useful.eep in mind that these different terms all refer to the same thi â¦ ng: the smallest positive integer which is a multiple of two or more numbers. The least common multiple of 18 and 24 is 72.