Question

Помогите дам 40 баллов​

Answer 1

1)3/8•(-4)+5= 3/8•(-32/8)+5=(-96/8)+5=-12+5=-7

2)5/9:(-1/3)-7=5/9•(-3/1)-7=(-5/3)-7=(-1ц2/3)-7=-8ц2/3

3)2/5•(-3)-4/5=-6/5-4/5=-10/5=-2

4)5/12:1/4-(-1/3)=5/12•4/1-(-1/3)=20/12+1/3=24/12=2

5)(1/2)•(-4)-5=(-2)•(-4)-5=8-5=3

6)4/9:(-2/3)+1=4/9•(-3/2)+1=(-2/3)+1=(-2/3)+3/3=1/3