Question

arrange the rational number in descending order :- -3/10, -11/20, -7/15, 17/-30​

Answer 1

Answer:

17/-30,-3/10,-7/15,-11/20 hope it's helpful to you

Answer 2

Answer:

(-3/10), (7/-15), (-11/20), (17/-30) First we write each of the given numbers with a positive denominator.

(7/-15) = [(7× (-1))/ (-15×-1)] = (-7/15) (17/-30)= [(17× (-1))/ (-30×-1)] = (-17/30) LCM of 10, 15, 20 and 30 is 60

Now, (-3/10)= [(-3×6)/ (10×6)] = (-18/60)

(-7/15)= [(-7×4)/ (15×4)] = (-28/60)

(-11/20)= [(-11×3)/ (20×3)] = (-33/60)

(-17/30)= [(-13×2)/ (30×2)] = (-26/60)

Clearly,  

(-33/60)< (-28/60) < (-26/60) < (-18/60) Hence, (-11/20)< (-7/15) < (-17/30) < (-3/10)