Question

Eli wants to plant 45 sunflower plants, 81 corn plants and 63 tomato plants in his garden. If he put the same number of plants in each row and each row has only one type of plant, what is the greatest number of plants I can put in one row? Do I use GCF or LCM to solve this question?

Answer 1

GCF

Explanation:

Each row will have the same number of plants. So we want to know what's the biggest number we can divide 45, 81, and 63 by. That means we need to find the greatest common factor. In this case, it's 9. Each row can have at most 9 seeds.