Answer:
Tamika has painted 1/3 of the mural, and Li has painted 1/6 of it. To find the total part of the mural that they have painted together, we need to add these fractions:
1/3 + 1/6
We need to find a common denominator to add these fractions. The smallest common multiple of 3 and 6 is 6. We can convert 1/3 to 2/6 by multiplying the numerator and denominator by 2:
2/6 + 1/6 = 3/6
So, Tamika and Li have painted 3/6 of the mural in all. We can simplify this fraction by dividing both the numerator and denominator by 3:
3/6 ÷ 3/3 = 1/2
Therefore, Tamika and Li have painted 1/2 of the mural in all