Subtract. Express your answer in lowest terms.

12 1/3 - 7 5/7
please answer in fraction form

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?

One file clerk can file 10 folders per minute. a second file clerk can file 11 folders per minute. how many minutes would the two clerks together take to file 672 folders?