if i were to reduce 2 fractions to the lowest terms, would i add the whole, for example, 2 and 2/8, or just leave it as one fraction, like 18/8? pls helpp

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?