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InterviewSolution
| 1. |
Arrange the following rational numbers in ascending order (i) -2/5,7/10,-8/15,17-30 |
| Answer» <html><body><p>Step-by-step explanation:<a href="https://interviewquestions.tuteehub.com/tag/step1-3076764" style="font-weight:bold;" target="_blank" title="Click to know more about STEP1">STEP1</a>: We are given the rational <a href="https://interviewquestions.tuteehub.com/tag/numbers-22758" style="font-weight:bold;" target="_blank" title="Click to know more about NUMBERS">NUMBERS</a>:35,−17−30,8−15,−710We first write the given rational numbers so that their denominators are positive for that we will <a href="https://interviewquestions.tuteehub.com/tag/multiply-1106275" style="font-weight:bold;" target="_blank" title="Click to know more about MULTIPLY">MULTIPLY</a> numerator and denominator by (−1)⇒−17×(−1)−30×(−1)=1730⇒8×(−1)−15×(−1)=−815Thus the given rational numbers with positive denominator are:⇒35,1730,−815,−710Step2: Now L.C.M of the denominator 5,30,15and10is 5×6×3×2=180 .We now write the numerator so that they have a common denominator 180as followsIn case of 35we multiply numerator and denominator by 36⇒3×365×36=108180;In case of 1730 we multiply numerator and denominator by6⇒17×630×6=102180;In case of −815 we multiply numerator andStep3: Comparing the numerators of these numbers and also considering the signs as a <a href="https://interviewquestions.tuteehub.com/tag/start-1224710" style="font-weight:bold;" target="_blank" title="Click to know more about START">START</a> from a negative number we get (in case of negative numbers greater the number with negative sign smaller will be its value)−126<−96<102<108Therefore, the ascending order of whole fraction will be−126180<−96180<102180<108180Step5: hence the order of rational numbers is −710<−815<1730<35</p></body></html> | |