Question

A mosaic wall is divided into 50 equal sections.If 15 sections are reserved for orange tiles and 20 sections are reserved for blue tiles,what fraction of the mosaic wall is left for other colors

Answer 1

3/10

Explanation:

So 15/50 and 20/50 are used, so you add them together, which would be 35/50

Then you subtract 35/50 from 50/50 to find what is left, which would be 15/50

Simply that by dividing the numerator and denominator by 5, which the final answer would be 3/10