least common multiple

2 buses leave at 5:30am, 1 comes every 18 minutes and one comes every 15 minutes when will they both come at the same time again We want the Least Common Multiple (LCM) of 15 and 18. LCM(15, 18) Enter this into the search engine, and we get: 90 minutes

An ancient Greek was said to have lived 1/4 of his live as a boy, 1/5 as a youth, 1/3 as a man, and spent the last 13 years as an old man. How old was he when he died? Set up his life equation per time lived as a boy, youth, man, and old man 1/4 + 1/5 + 1/3 + x = 1. Using our LCM Calculator...

Blake and Tatsu are each assigned a paper for a class they share. Blake decides to write 4 pages at a time while Tatsu decides to write 7 pages at a time. If they end up writing the same number of pages, what is the smallest number of pages that the papers could have had? We want the least...

H.C.F of 13 and 52 = 13 L.C.M. of 13 and 52 = 208

This is a least common multiple problem. The least common multiple of 6 and 8 is 24 So every 24th person, less than or equal to 329 receives both a soda and a hot dog. Using our multiples calculator, we find there are 13 multiples of 24 less than or equal to 329...