39 = 3•13
130 = 2•5•13
<span>НОД(39, 130) = 13
</span>64 = 2•2•2•2•2•2
144 = 2•2•2•2•3•3
<span>НОД(64, 144) = 2•2•2•2 = 16
</span>
2 = 2•2•3
8 = 2•2•2
<span>НОК(12, 8) = 2•2•2•3 = 24</span><span>
</span>25 = 5•5
15 = 3•5
НОК(25, 15) = 3•5•5 = 75
(0.0042826)/(1.07065)-(0.114048)/(6.1776)=0.004-0.0184615= -0.0144615
1)840:5 умножить на 2=336
2)336:3 умножить на 2=224
3)336+224=560
4)840-560=280
Ответ:
1.61/20 103/50 .108/25 151/20 304/25 463/50
2.21/8 131/125 617/200 2009/250 3503/500 55/8