Question

15/9:(-1/3)-7=? 2)2/5×(-3)-4/5=? 3)5/12:1/4-(-1/3)=? 4)(1/2)×(-4)-5=? 5)4/9:(-2/3)+1=? помогите пожалуйста ​

Answer 1

1) 15/9:(-1/3)-7 = (15/9) * (-3/1) - 7 = -45/9 - 7 = -5 - 7 = -12

2) 2/5 * (-3) - 4/5 = -6/5 - 4/5 = -10/5 = -2

3) 5/12:1/4 - (-1/3) = (5/12) * (4/1) - (-1/3) = 20/12 + 1/3 = 5/3 + 1/3 = 6/3 = 2

4) (1/2) * (-4) - 5 = -2/1 - 5 = -2 - 5 = -7

5) 4/9:(-2/3) + 1 = (4/9) * (-3/2) + 1 = -12/18 + 1 = -2/3 + 1 = 1/3