Question

Помогите плиз........​

Answer 1

Ответ:

1)-1 11/60

2) 6 2/5

3) 4 23/48

4) 3/20

не точно

Пошаговое объяснение:

1) 11/20*3 + (-2 11/15 * 4) = 33/60 + (-2 44/60) = 1 11/60

2) -2/5 * 4 + 6 3/4 * 5 = -8/20 + 6 15/20 = 6 8/20 = 6 2/5

3) -7/12 * 4 + 5 1/16 * 3 = -28/48 + 5 3/48  = -28/48 + 4 51/48 = 4 23/48

4) 5/12 * 5 + (-4/15 * 4) = 25/60 + (-16/60) = 9/60 = 3/20