Change the mixed numbers from mixed numbers into fractions, so you would have: 16/3 + 22/5 Now to add these two together, they have to have the same denominator. To do that, multiply 16/3*5/5 and 22/5*3/3 and your new terms would be: 80/15 + 66/15 Now you can add the numerators together: 146/15 and simplify for your answer: 9 11/15
Explanation: If a pyramid and a prism have the same base and height, their volumes are always in the ratio of 1:3 . As volume of prism is 108 cubic meters, volume of pyramid is 13×108=36 cubic meters.
