Answer:
60 inches
Step-by-step explanation:
the least common multiple of 12 and 10 is 60
you can use the prime factorization tree or a list method
1st multiple of 10: 10 1st multiple of 12: 12
1st multiple of 10: 20 1st multiple of 12: 24
1st multiple of 10: 30 1st multiple of 12: 36
1st multiple of 10: 40 1st multiple of 12: 48
1st multiple of 10: 50 1st multiple of 12: 60
1st multiple of 10: 60
You can stop when a common multiple is reached