First one is 6*5*4*3*2*4*3*2
second is 5*4*3*2*2
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Answer:
LCM of 3, 5, and 6 is the smallest number among all common multiples of 3, 5, and 6. The first few multiples of 3, 5, and 6 are (3, 6, 9, 12, 15 . . .), (5, 10, 15, 20, 25 . . .), and (6, 12, 18, 24, 30 . . .) respectively. There are 3 commonly used methods to find LCM of 3, 5, 6 - by division method, by prime factorization, and by listing multiples.
Step-by-step explanation:
9 x 0.55 = 4.95, which can be rounded to the ones place.
5 books remain.
1 hour = 60 min
0.5 hours = 60 * 0.5 = 30 min.