3/5:11/15
=3/5*15/11=9/11
27/40:18/35
=27/40*35/18=21/16=1 5/16
1:3/7
=1*7/3=2 1/3
8/27*36=32/3=10 2/3
8/15+2/3+1=8/15+10/15+1=1 18/15=2 1/5
15/8 больше фурфурфцкруфреРЦПУ
-4.8+(2<span> – a) </span>при
а= -5/6
-4,8+(2 2/3 <span>–(-5/6)) </span>= -4,8+(2 2/3 +5/6)0 +<span> = -4,8 + 3 1/2</span><span> = -4,8+3,5= -1,3</span>