Question

помогите пишут задача шлишком короткая

Answer 1

3/5 - 4/15 = 9/15 - 4/15 = 5/15 = 1/3

1/2 - 1/3 = 3/6 - 2/6 = 1/6

1/3 x 1/6 = 1/18