What multiplication fact could you use to find a number that can be divided equally by 8 and 9? My answer is 8 x 9 = 72. Is this correct?
Right.
It costs $7for a matinee and $8 for an evening movie. With $56͵ would you be able to buy more matinee tickets or evening tickets? Explain.
More matinee tickets because 56\7=8 and 56\8 only = 7
thanks Ms. Sue
Yes, your answer is correct. To find a number that can be divided equally by 8 and 9, you need to find the least common multiple (LCM) of 8 and 9. One way to find the LCM is to list the multiples of each number and identify the smallest common multiple.
The multiples of 8 are: 8, 16, 24, 32, 40, 48, 56, 64, 72, ...
The multiples of 9 are: 9, 18, 27, 36, 45, 54, 63, 72, ...
From the lists, you can see that 72 is the smallest number that appears in both lists. Therefore, when you multiply 8 by 9 (8 x 9 = 72), you get a number that can be divided equally by both 8 and 9.