Ricki took a survey in the 5 grade and found that 2/3 of the students ride the bus to school and 1/4 of the students walk. what fraction of the fifth grade students either ride the bus or walk to school

11/12 of the 5th grade ride the bus or walk to school.

Step-by-step explanation:

First you have to find a LCD (least common denominator) for both fractions which is 12.

Second you have to multiply the numerator by whatever you multiplied the denominator by for both fractions

Finally you add both fractions together and you get 11/12

1512

189 in³

Step-by-step explanation:

Here is the complete question

A toy company is packaging its toys to be shipped. Each small toy is placed inside a cube-shaped box with side lengths of 1/2 in. These smaller boxes are then placed into a larger box with dimensions of 12 in. × 4 1/2 in. × 3 1/2 in.

a. What is the greatest number of small toy boxes that can be packed into the larger box for shipping?

b. Use the number of small toy boxes that can be shipped in the larger box to help determine the volume of the shipping box

A. greatest number of small toy boxes that can be packed into the larger box for shipping = volume of larger box / volume of smaller box

volume of larger box = length x width x height = 12 in. × 4 1/2 in. × 3 1/2 in = 189 in³

volume of smaller box = volume of a cube = side length³ = ³ = 1/8 in³

189 ÷ = 189 x = 1512

b. 1/8 x 1512 = 189 in^3