1) 499; 500
2) 120; 121
3) 609; 610
4) 300; 301
<span>5) 999; 1000</span>
НОК (90;Х) = 360
<span>НОД (90;Х) = 18 </span>
<span>НОК = (90 * Х) / НОД </span>
<span>360 = 90 * Х / 18 </span>
<span>90 * Х = 360 * 18 </span>
<span>90 * Х = 6480 </span>
<span>Х = 6480 / 90 Х = 72 </span>
<span>НОК (90;72) = 360 </span>
<span>НОД (90;72) = 18 .</span>