Question

Arrange the following rational numbers in descending order:
(2/5), (7/10). (8/15). (13/30)
a) 21/25,16/30.14/30.2/5
b) 7/10.8/15,13/30,215
c) 7/10.13/30,215, 8/15
d) 13/30 2/5, 8/15, 7/10​

Answer 1

Answer:

7/10 , 8/15 ,13/30 , 2/5 .

Step-by-step explanation:

First we take LCM of 5 , 10 ,15 , 30

The LCM is = 30 .

2/5 × 6/6 = 12/30

7/10 × 3/3 = 21/30

8/15 × 2/2 = 26/30

13/30 × 1/1 = 13/30

21/30 , 16/30 , 13/30 , 12/30

So , In descending order = 7/10 , 8/15 , 13/30 , 2/5.