Question

помогите дам 30 балов

Answer 1

1) -7,2: (-9) = 7,2:9=0,8

2)3/8 : (-3/5) = 3/8*(-5/3) = -5/8

3)5 1/4 : ( - 4/7)  =21/4 * (-7/4) = 21* (-7) / 4*4 = -147/16

4)(-1/6) : (-2 2/5) = 1/6 * 5/12 = 1*5 / 6*12 = 5/72