Делители на 5:14(2,4,7,1,14)
делители на 6:32(2.4,8,16,1,32);20(2,4,5,10,1,20);12(2,3,4,6,1,12)
делители на 7:18(2,6,8,9.1,18)
2/10=20%
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<span>1) 2/15 = 3/5х
х=2/15 : 3/5 = 2/15 * 5/3
х=1/3
</span><span>2) 2/3 = 28/7х
</span> х= 2/3 : 28/7= 2/3 * 7/28
х= 1/6
3) 9/10 = 63/5(х+8<span>)
</span> х+8= 9/10 : 63/5= 9/10 * 5/63
х+8= 1/14
х= 1/14 - 8= 1/14 - 7целых14/14= -7целых13/14
<span>
1) -3.09; -7/15; -1/13; 1/14</span>
<span /><span>2-1) -7/18 + 53/12 - 8/18 = 53/12 - 15/18 = (53*3 - 15*2)/(2*3*6) = 129/36 = 3 21/36</span>
<span>2-2) -1/20 - 1/2 = -1/20 - 10/20 = -11/20</span>