Question

Arrange the following in descending order:

(i) 2/9, 2/3, 8/21

Answer 1

the answer is

2/9, 8/21, 2/3

Step-by-step explanation:

first make sure that all the denominators are same

so, 14/63 , 42/63, 24/63

the answer is 14/63, 24/63, 42/63

which is 2/9, 8/21, 2/3

Answer 2

Step-by-step explanation:

we need to arrange this in descending order :

• to find which is big and small ; we will make the denominator equal
• common denominator : lcm of 3, 9, 21
• = 3×3×7
• = 63

1. so, 2/9 = 2/9 ×7/7 = 14/63
2. 2/3 = 2/3 ×21/21 = 42 /63
3. 8/21 = 8/21 × 3×3 = 24/63

therefore : in descending order ;

42/ 63, 24/63, 14/63

ie, 2/3, 8/21, 2/9 is the descending order