2/7(1,4a-3 1/2 b)=2/7(7/5a-7/2b)=2/5a-b
<span>1.2(5/6а-0.5b)=6/5(5/6a-5/10b)=a-3/5b </span>
<span>2/5a-b-a+3/5b=-3/5a-2/5b=-0.6a-0.4b</span>
(50000-139738*0,1):(20,4+33,603)=667,114789919
1.139738*0,1=13973,8
2.50000-1397,8=36026,2
3.20,4+33,603=54,003
4.36026,2:54,003=667,114789919
3,48 - 3,50
4,319 - 4,320
4,98- 5,00
1. (0.085:0.425)^3=0.008
2. 4.208-0.008=4.2
3. 0.015*4.2=0.063
4. 0.063+2.937=3
5. 3^2=9