Question

Alley made a design with 20 tiles. The design uses 5 red tiles, 4 blue tiles, 6 green tiles, and 5 white tiles. She writes a fraction to represent the part of the design that uses red and blue tiles. Which number should she write in the numerator of the fraction?A 5B 9C 16D 20

Answer 1

Alley's fraction representing red and blue tiles should have a numerator of 9 since she has 5 red tiles and 4 blue tiles out of a total of 20 tiles.

Step-by-step explanation:

Alley is working with a design that includes a total of 20 tiles in various colors. To represent the portion of the design that uses red and blue tiles, she needs to write a fraction where the numerator indicates the combined number of red and blue tiles, and the denominator represents the total number of tiles used in the design. She has 5 red tiles and 4 blue tiles, so the combined number of red and blue tiles is 5 red tiles + 4 blue tiles = 9 tiles. Therefore, the numerator she should use in her fraction is 9.