Question

rational numbers arrange in ascending order 7/8,64/16,36/12,5/4,140/28

Answer 1

Answer:

(i) Given (7/8), (64/16), (39/-12), (5/-4), (140/28) The LCM of 8, 16, 12, 4 and 28 is 336 Multiplying the numerators and denominators to get the denominator equal to the LCM i.e. 336 Consider (7/8) Multiply both numerator and denominator by 42, then we get (7/8) × (42/42) = (294/336) ….. (1) Consider (64/16) Multiply both numerator and denominator by 21, then we get (64/16) × (21/21) = (1344/336) ….. (2) Consider (39/-12) Multiply both numerator and denominator by 28, then we get (39/-12) × (28/28) = (-1008/336) ….. (3) Consider (5/-4) Multiply both numerator and denominator by 84, then we get (5/-4) × (84/84) = (-420/336) ….. (4) In the above equation, denominators are same Now on comparing the descending order is: (140/28) > (64/16) > (7/8) > (5/-4) > (36/-12)Read more on Sarthaks.com - https://www.sarthaks.com/682216/arrange-the-following-rational-numbers-in-descending-order-i-7-8-64-16-39-12-5-4-140-28