David went to the lake and fished for 1 1/2 hours and kayaked for 4 5/6 hours. in total, how much time did he spend at the lake?

Step-by-step explanation:

Since David fished for a hours and kayaked for another hours, the sum of these two mixed numbers will be the total time that he spent at the lake:

+

In order to add fractions, they need to have the same denominator.  We use the denominator that is the least common multiple of both denominators:

2: 2, 4, 6

6: 6

=

+

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